The apartment is very nice, new, and extremely well located. However, it does not have an elevator so it was a bit hard to get my suitcase up three floors by myself.
I asked the host how I could turn on the main heaters and I never got a response. There are 2 small additional heaters but they were very weak so I was cold. The nuki code for the apartment door is sent at the last minute right before check-in (at 4 pm).