Its a nice small place in a nice area tucked away at the end of the cutest little side street/series of steps. The flat feels a bit smaller maybe than in pictures but other than that very much what we expected. Heating worked well, something I was a little sceptical before arriving. Hot water from the shower was somewhat irregular but it didn't bother us too much.
Public transport was a bit of a challenge for us. Going to the center was easy but after a long day of going around we found it hard to find a bus back. Maybe because we often weren't anymore in the very center. So be sure to get a little aquinted with the bus network of Rome beforehand.
All the formalities worked very well with Ariel and his brother who let us in gave us a few welcomed tips. All in all we very happy with our choice.