Way larger than you’d expect, extremely convenient (steps from the Vatican or trains to other spots in Rome), and quite clean. We had an issue with check in but Enrico was responsive and we got it sorted fairly quickly.
The place is located right outside some restaurants/bars and we were worried about noise, but with the fans on it wasn’t a problem. There was also a portable A/C in the place which was very helpful during our stay.
Great spot to visit Rome!