Location. Room size. Balcony. Appearance.

Too minimalistic. Tub was too slippery without any anti-slip mat or base. No bars on side to hold. The shower water spilled over easily outside of the tub and on floor making a mess daily. The tub in itself when used only once caused huge water pool on the floor out-side of tub when water was draining, making a huge mess that needed 4 bath towels to dry. Clearly, that who system is flawed and must be replaced with safer, efficient one.

The location was awesome - the Airport train terminus was right outside hotel, everything you wanted to see was within easy walking distance, T-bane right next door at the Train Station The breakfast was awesome - everything you could possibly want to eat for breakfast!!!! The room was a good size and the separate comforters worked perfectly.

The mini fridge did not work for the first few days. We were offered a different room, however, we managed with ice cubes and the bathroom sink. The tub was high to get out of which for a less mobile person could present problems. Something to think about as we are getting older.

Perfect location. Right next to the train station, 20 mins straight from the airport. It is very central. Everything is walkable. All of the staff were so friendly and helpful. The room had everything we needed and the bed was very comfortable. Breakfast was fabulous. Everything you could want and more. There are many restaurants close by and the Opera house is right across the road. We didn't hesitate to book again when we were stranded in Oslo on our way back to the UK because of the Heathrow closure. 2 stays in 7 days.....it felt like home. Don't hesitate, book it as your base to explore Oslo.

Nothing

Excellent, comfortable hotel in perfect location in central Oslo, a stone’s throw away from the station. Spacious, well-equipped, nicely designed room with a comfortable bed and a good sized bathroom. Lots of seating within the room and the bonus of a balcony with city view. Fabulous, well-staffed breakfast providing ample, delicious choices. Healthy ginger, carrot and orange breakfast shot which was offered, not only on arrival, but served at the table, was a welcome extra touch. The staff were all very friendly and hospitable. All in all, we had a wonderful stay at the Thon Hotel Opera- many thanks to all of the team.

Breakfast buffet was amazing. One of the best I have been too. Great sized room with two seperate sitting chairs which was nice as did not need to sit on the bed the whole time we were in the rooms. Bathroom was a full access shower so easy to get in and out of. Location to the central station and the small shopping centre attached could not be beaten. Convenient for the train from the airport and also the train to Bergen.

The shower was quite small for the space in the bathroom & the way the doors were sealed meant water got everywhere. They are building a new high rise two doors up & the cranes had big lights that shone directly into our room.

The staff was very helpful in storing our luggage for three nights while we took a self-directed Norway in a Nutshell tour, including a trip to Bergen and back via the Vy train. The hotel location is very convenient to the train station, the fjord boat tour terminal, the Opera House, the Munch Museum, and a good selection of restaurants. The room was quiet, clean, and comfortable. We used the Flytoget train to travel from and back to the Oslo airport, which was also very convenient.

Not a fan of the duvet-style bedding that we experienced at the Thon Opera and throughout our trip to Norway and Iceland. The room is a bit small to be able to adequately separate two single beds.

The location is perfect for access to the Oslo railway station and easy access to the airport by rail. The location is also great for access to public transport which is plentiful in Oslo. It is also walking distance to many attractions. The breakfast included in our room rate was exceptional. It caters for everyone (food allergies included) with quality food. One of the best we have had. The facilities are modern and the bed was extremely comfortable.

We had a shower over the bath and that can be challenging if you are short or elderly.

Great breakfast. Close to train station and food outlets nearby. Amazing library across the road, beyond that the Opera House (walk on the roof) and walk further South East to the MUNCH art gallery and view three of "The Scream" originals shown in turn every 30 minutes. Free walking tour (tip required) meeting point no far away.

Nothing to do with the hotel. After exiting the train from Bergen the signage was unclear in the station, a bit more homework and we would've had no issue finding the hotel.

Superb location. Atached to central railway station and just next to the Opera and the waterfront. Comfy bed (though maybe a bit on the soft side) and great bathroom with excellent pressure in the shower (though the knobs to control water temperature were very fiddly). Staff at reception and breakfast were absolutely wonderful. Amazing breakfast (though crowded).

Housekeeping failed to show up one day. Very difficult to control the temperature in the room. Lighting in the room was rather poor. Very limited selection of food for lunch and dinner.

The location is perfect, right next to the train station. We had heavy bags and I was so realized to only walk a few minutes. Plus the streetcars and buses all have stops right outside so we easily navigated the city using public transport. The breakfast was exceptional. A bonus was we got a 50 NOK voucher ever night we declined housekeeping as a going green initiative. The beds were comfortable and the room has everything you need.

I would have liked to do laundry. There is laundry service but it’s priced per item and was more expensive than I wanted. Could be good in a pinch but not reasonable if you have a full load to do.