The location is great and you can walk to the Vatican in 15 minutes. Lots of stores and places to eat around! The apartment is very spacious and has a lift. It was a quiet neighborhood. She is quick to respond to messages and the man who checked us in gave us his parking spot which was nice.
The downsides are that you have to schedule a meeting to check in which doesn’t allow any flexibility in your travel plans. Wifi doesn’t work in all the rooms and isn’t very fast. She mentions in the listing there is a 40 euro charge for a late check in on Sundays and holidays but actually charges everyday (we checked in late on a Saturday around 9:30PM and had to pay 40 euros in cash). They will also tell you to take out your trash at the end of your stay which I think should be their responsibility since they charge a $113 cleaning fee.