We enjoyed our stay. The apartment is nice, clean and in a great location. We think we even saw Pope Francis arrive by helicopter one night :D
There are a couple of things that could be improved though. Namely, communication. We tried contacting the host about a missing wifi router power adapter, but didn't receive any response. Also, while booking and arriving in the apartment, it seems we chatted with about 3 different people.
From a technical perspective a new shower head, checking all lights and wifi work before guests arrive. We stayed for 16 days and could have used a fresh set of towels, which weren't provided. There's a washing machine in the apartment, but there was no washing powder. We didn't really want to buy a washing powder, etc. just to use it once.