The apartment was very nice and big, the shower was good and had shower gel/shampoo :)
The check-in process and communication unfortunately didn't go so smoothly. The guard asked 2 times for both of our IDs. Then in order to get the access code for the room we also had to upload a photo of my ID online, which didn't work since the file size was limited to 4MB and the photo made with my smartphone was bigger than that.
However, the host responded quickly on the airbnb chat (it would have been nice to be able to call him though) and he allowed us to stay 1 hour longer (until midday) on the check-out day without extra charge.