This is a really wonderful refuge in the middle of bustling Trastevere. There is lots of space and all manner of useful amenities like wifi, coffee maker, etc. The balconies are lovely and there's a great cross-breeze.
There are loads of great restaurants and cafes nearby and you can walk to the Centro Storico and Vatican. It's not the most convenient to the trains, but we did OK. The scene outside can be rather load with carousing college kids at night, but with the windows closed and the fan or AC on we slept great.