Visited for four nights with my 14-year old son. Professional and friendly staff, clean facilities, choice between different pillows from a menu (!), Air condition with a remote. Nice restaurant on the rooftop. Not to mention the «all you can eat» sushi restaurant 30 m down the street, became my sons favorite.
When i struggled with a vending machine down the street, one of the staff, with a great Poirot moustache, arranged to meet me after he got off work at 22.30 and followed me and fixed it on his free time. Bravo!
We didnt have time to try the spa, but im sure that would have been very nice as well.
Most tourist sites in Rome available within a 10-11 euro taxi ride, if you dont prefer walking.