(+) - the apartment's location is great, it is clean and mostly well equipped.
(-) we waited ~40 minutes for the check-in. The apartment had a terrible cigarettes smell that did not go away even after leaving the window open.
The host's answers in the Airbnb chat (the only means of communication we had with the host) could take half a day and the answers where not helpful - though when they needed anything from us, like to get into the apartment or to ask us for a good rate, they wrote and answered very fast.
The apartment DOES NOT HAVE A MICROWAVE as the host claims.
Overall - the hosts are not very helpful and a bit rude, but the location is great and the apartment was clean (but smelly).