The flat was nice and clean, the location is good (Very Central) but it's very noisy. On the Saturday night, there was a police incident with residents in one of the other flats and the screaming and shouting was very audible, keeping us awake until the early hours. I can't hold the hosts overly responsible for that, but it's worth being aware of.
However, key pickup was less than ideal. The host said that pickup is any time up to 19:00. At 16:00 I sent them a message saying that we'd be there for 18:30. At 18:00, I got a shirty message from the host saying that I hadn't picked up the keys yet - well of course I hadn't, I made it clear it would be 18:30. When I did show up at the shop (At 18:30!), I got slightly berated by the owner (Who's not Finley) who called me a "Comedian" for showing up at that time. I'm sure it was intended as banter, but the poor communication wasn't great.
As others have mentioned, directions to the flat and parking instructions were confusing, just an A4 page with some pictures printed out on it and a vague verbal description about parking times.