8/10
A nice, small hotel in a good and safe area next to the US embassy. Metro (Barberini) can be reached within a few minutes walk (the walk back is uphill so takes a bit longer). Good breakfast, good service, nice rooms (perfect air condition) and a very good bathroom.
The only downside of this hotel is that the rooms are not really good insulated against noise. You can hear people on the hallway, and as the hotel is small it is quite likely that you hear people coming home late or going early for breakfast.
Apart from this: perfect.