Fantastic. Perfect little room for our one night in Trastevere. Really nice.
The area around the flat is great. Loads of great restaurants and bars, but yet the flat is really quiet and we heard nothing from outside.
The place is easy to get to. Trastevere train station and the tram straight up. Exactly as explained. Then it's walkable into the centre of the city, or a short bus ride. But you get the benefits of Trastevere on your doorstep.
Great place, we will be returning. :)