We had a nice enough stay, however, the flat wasn't as cozy as the photos would suggest. The sofa was broken, as well as the blinds in the living room, and there was only one chair at the kitchen table (the other one was a stool with no back support). So not deal breakers, but do take away from the comfort and overall vibe of the flat. Plus the key/lock to the building entrance were temperamental - gave us a scare on the first night, because it took us a while to get it to open.
From the positives: the flat was clean and conveniently located - quiet street and some nice coffee shops nearby.