The rooms could be bigger but great for the price.

Very clean, nicely sized rooms and the Onsen access is wonderful. They have a good cafe with tasty and reasonably priced food downstairs. You get your own gowns provided in your rooms and all the facilities in the rooms are great.

Stayed in August 2025

Nice, modern hotel, right at the top of the small main street of Noboribetsu Onsen. To me, the best part of the stay was the free access to the very extensive onsen/spa of the larger hotel across the street. This hotel also has a modest onsen in the basement level which is more convenient to the rooms. I'd definitely return here.

Stayed in August 2025

Very great hotel

Stayed in August 2025

Amazing to use the onsen at the very fancy hotel opposite - view of Hell Valley from the onsen! Adex Inn is very modern, comfortable and clean. Lovely cafe and bakery downstairs. Would recommend for better value than the other hotels in the area!

Stayed in August 2025

Weak wifi.

Easy check in. Just a short walking distance to Hell Valley and shopping street. Bus stop to train station is just around the corner.

Stayed in July 2025

A very nice hotel in the very centre of Noboribetsu - near all interesting places. The room was clean and spacious, staff was friendly and helpful - there is a small onsen on the first floor of the hotel - you also have access to a bigger onsen across the street. I really enjoyed my stay in Adex Inn - I can honestly recommend this place.

Stayed in August 2025

Pillow, too flat, which appears to be a common theme in several of the accommodations in Japan

Close to a lot of the attractions such as the various hikes, also to the restaurants, quiet.

Stayed in August 2025

Everything was perfect. The location, the access to the great onsen on the hotel across the street, and the café in the first floor especially were very enjoyable additions to a clean, comfortable room. It's very close to Jigokudani, and it's making it extra easy to enjoy the Onibi-no-michi after sunset. It's at the town's shopping street entry so no problem to stroll, buy souvenirs, and go eat in one of the restaurant. It's also just around the corner of the Sengen place and the bus stop to go to Noboribetsu JR station. Noboribetsu isn't a big city in any way, but I especially liked the location of this hotel and felt at the center of everything. The staff was kind and helpful, and the café's little treats were very good. I especially liked their pain au chocolat (but I think they called it a "chocolate croissant") which I can say, even as a French, is one of the best I had. I would book there again without question.

Stayed in August 2025

Wifi was very weak. Very little place for keeping one's things in the bathroom, not even a place to hang a towel (neither in the room). The iron doors on the room came as quite a surprise, especially considering the price.

All the required and described amenities were present. Location good, near Hell Valley and of course, with access to Takimotokan's onsen across the street.

Stayed in August 2025

good location. we arrived at the hotel late and so checked in at the coffee shop. the staff there helped us to check in when the reception was closed. there is a convenient store nearby and we had Japanese noodles in a shop nearby. beds are comfortable but there is not alot of space to put our bags. I read online that we could use the hot spring in the hotel on the opposite road but we were too tired and so didnt go. overall, my family liked this place. we had lunch in on next day after we visited the tourist sites nearby. it's not easy to find a place to eat here if you come here as a big group. the restaurants are small. so we came back to the hotel to have our lunch. the sandwich in the coffee shop is ok. there is pasta but all sold out that day. if plan to visit the tourist sites nearby, it's a good choice to stay here.

Stayed in July 2025

Refurbished hotel with big rooms, quick self check-in and nice café, where you can buy pastry and coffee for breakfast. The hotel has tiny onsen with free entry in the basement, but you can also visit the huge onsen complex at the hotel across the street for free!

Stayed in June 2025

The room doors are hollow metal and there is a gap beneath them. Every sound made in the hallway echos into your room. Not a problem if you have quiet neighbors, but an issue with a noisy or late arrving group. Thankfully, there are only a few rooms on each floor, so reduced likelihood of this being an issue.

Located in the heart of the onsen town - immediately next to everything you want to do and see. Access to the onsen / spa facilities across the street is included, and it is the biggest, most complete and most varied onsen I have yet visited in 4 trips to Japan (totalling over a year in length). Very pleasant room and facilities.

Stayed in August 2025

Nothing.

The rooms look much better than in the pictures, and the location is exceptional. The café/bakery downstairs is delicious, and the onsen of the hotel next door (access is included in the 600 yen onsen tax) is AMAZING. It has the best view on Jigokudani valley. The hotel staff were also very accommodating, immediately accepting to move our reservation when we got stuck in Hakodate due to everything shutting down after a tsunami warning.

Stayed in July 2025

Nothing

Amazing hotel with access to the hot spring

Stayed in July 2025

N/A

Onsen

Stayed in July 2025

WiFi in the rooms was very bad

Very clean and modern. Access to the onsen across the street is great

Stayed in July 2025

Access to the grand spa was amazing.

Stayed in July 2025

Wifi was of little to no use in our room. We stayed at Room 712, the topmost corner of the hotel and probably the spot that is barely touched by any signal. We only get to use the wifi at the cafe but even there, the browsing experience still gets interrupted. We wished the baked goods at the cafe were available all days of the week.

Close to everything at a walking distance: bus stop, Hell Valley, and other places of interest, restaurants, and shops. For a room in Japan, this one feels spacious. It can comfortably accommodate 2 people with carry-on luggages. The bathroom was a delight because it was roomy and the toilet had these interesting features, uniquely Japanese. Free access to the grand bath onsen at the bigger hotel across the street. The laundry room is a big relief to one-bag travellers, just have 100 yen coins on hand. The cafe at the lobby makes great croissants. On the day before our last day, we carelessly left our key cards in our room and one of the staff manning the cafe patiently came to our rescue.

Stayed in July 2025

maybe no staff? it's all self-service, but normally you won't need them, only when there's a situation.

stay in adex inn, get the access to onsens of Dai-ichi Takimotokan cross the street, this is of the top value. good location, right on the onsen street, close to everything, bus stops,shops and restaurants. bakery of the cafe downstairs smells really good, worth a try.

Stayed in April 2025

Wifi is weak in the room. There are sofa and table at the lift lobby area where the Wifi is strong. Sometime, we go there to get signal strength. Hotel should improve on this. Nearby shops are closed at 5pm, limited dinner choices.

There is a cafe available at the lobby. Self checkin/checkout, Pay onsen fee Yen300/night/pax. Twin bed in room with reasonable room size. Washer and dryer available with fee. There is a small onsen at the hotel. Free parking across the road. Hotel guests are free to use the onsen at Dai-ichi Takimotokan Hotel which has many pools that is just across the road using the room card.

Stayed in July 2025

Some guests were a bit loud which made us realise the insulation was poor, but really, that is just to put something in this section.

Super stylish, clean, well located to explore the region. It has its own little onsen which works, or else you can go to the onsen at the hotel opposite the street, for free. Amazing bakery at the ground floor.

Stayed in July 2025

Great onsen next door. Clean and comfy room

Stayed in July 2025

Remember to tap your card when travelling down the elevator.

We were in a nice new room that was super clean and had a great view. The cafe down stairs was convenient. Great location near good food and a bus stop. Would stay again.

Stayed in July 2025

The most important thing you have to know is that the onsen at the four star hotel in front of Adex inn is included. You just have to go through the maze to enjoy the best baths ever with your room key. The rooms at the Adex inn are also ok, the western beds are really confy and there is breakfast from the bakery below if you want to indulge youself in really nice pastries, although they are a little bit expensive as well.

Stayed in June 2025