This apartment delivered as promised. Great space, roomy and with an atmosphere at least as stylish as the photos suggests. Beds were good, though we didn't (have to) use the smallest of the bedrooms which we thought was quite a bit less attractive than the others (but that's because the others are so nice). Beautiful bathrooms, though it helps if those who share the apartment are good friends - the stylish doors are hard to close - I imagine children might have a real problem there.
We had a great time, and agreed the only problem was we hadn't spend more time in the apartment - too busy with doing Berlin.
PS: don't know if other reviewers have mentioned this, but the apartment is on the ground floor level, facing the street, with the kitchen and one bedroom actually being storefront rooms of a former gallery/atelier with floor-to-ceiling windows. The signboards saying so still hang on the wall outside, lit and all. The privacy of these rooms is now only provided by electric blinds. Want daylight? Well the you also open view directly from the pavement. Though it's a residential street, is does mean we rarely opened the blinds fully and when we we're there, somebody used the sill outside the storefront window for night smoking and chats, surely unaware that I was in bed three feet away.