The location is super, easy to reach by foot and subway/bus. The check in works very nice, especially if you arrive late.
The apartment is decorated very nicely. It has a lot of equipment if you want to prepare food. All different kind of sweets shampoos etc was at our disposal.
What I didn't like is the humidity in the flat. The air stands still, as you cannot sleep with the window open (too much noice). The towels didn't dry.
The walls are also very thin, you could here everyone in the staircase as they would sit in the apartment.
Also the second lock was not lockable, which felt a bit vulnerable.
Coco always replied within minutes.