The apartment was good - exactly as pictured, however much smaller than we had expected (not necessarily a fault of the description... more our imagination!). The upstairs sleeping area is not blocked off with any doors or walls from the downstairs sleeping area. It is all open plan, and really quite small. Not a problem, but if you were planning to use the sofa bed, the upstairs area and the downstairs sleeping area it would be very tight. Additionally if any of your guests snore, every guest would hear it!
Finally the bathroom is just off the living room, and again only separated by a sliding door. A bit less privacy than we had expected.
Aside from that, the place was tidy and cute and in a great neighborhood. The host was also responsive and attentive.