The apartment was cosy and central, perhaps a bit smaller than I had thought from the pictures, but that was completely fine.

There was a delay in the check-in because the cleaner of the apartment had left with the key and the host had to go get the key, during which we ate in a nearby pizzeria and she kept our luggage in her car so we didn't have to carry it during that while.
When she came back and we entered, she was really friendly and talkative and told us a lot of information about the apartment and surrounding area etc.