The Blu Tango Guest House is perfectly situated in Rome: it is a calm to stay, yet very lively neighbourhood. There are a lot of nice, small bars around for a last drink but there's no noise disturbance.
We did everything by foot - all the tourist hotspots are nearby and even diner in Trastevere is definitely doable. Metro stop Cavour is just around the corner in case you don't feel like walking or want to go a bit further.
Fausto was a very helpful host - we could leave our luggage at the guest house after check-out. The room we stayed in was very nice, modern and clean - all you need for a citytrip. Wifi-access was available in the room.
I would definitely recommend this guest house.