The location was great, it was off of the main tourist area, but not too far to walk, or to take the tram. The flat was very modern and aesthetically pleasing.
Our only complaint was with the room configuration. One room had a bathroom, which is nice, but 0 windows or any air ventilation beside leaving the door to the room wide open. Since it was a very warm summer it made the room less than comfortable when trying to sleep. The other room was basically a loft, with a door. Ventilation wasn't a problem, but because it is a loft all the sound from downstairs or from the room carries everywhere else. If want some privacy, or a quiet place to rest while others are downstairs chatting or watching TV this bedroom is not good for that. This room also is a good size, but 75% of it is taken up by the bed, you can just barely walk between the foot of the bed to the other side.
Having a refrigerator and wacher/dryer was nice too. Overall we had a pretty good experience here, just a couple small issues.