My wife, 4 young kids, and I stayed in this apartment for 3 weeks. Overall this is a nice apartment, the host's service was very good, and I would recommend the apartment to travelers.
The building host was helpful, the apartments were large enough to fit a stroller/pram, the kitchen is large by European standards with an eat-in dining area plus a full other dining area at the other end of a long hall, the location is fairly central to top tourist areas and very close to the metro.
Know that the host takes the strict cancellation policy very seriously...we had a complication where we asked to cancel literally 2-3 hours after booking, and while at first the host said "no problem", later he would not give approval to Airbnb to cancel.
The wifi did not cover the full apartment and there was no wine opener, both of which the host sent staff to fix in the first day, which we very much appreciated. The only other things for a guest to be aware of is:
(1) that the beds seem to be quite cheap and our bodies certainly felt it after 3 weeks of sleeping on them,
(2) the floors creak heavily making it a slight challenge to keep sleeping babies asleep (this is probably to be expected for older apartments, but a consideration nonetheless if you have young children), and
(3) the neighbor in the apartment next door was sensitive to any noise, even uncontrollable things like a crying child in the middle of the day, and would bang on the walls regularly.