Fantastic location in the beating heart of Trastevere, beautiful apartment and a good size for the area. The best bakery in Trastevere is 1 minute away, Ponte Sisto bridge 3 mins away. The hosts are friendly and helpful with a plethora of great tips and advice for things to do and places to eat.
The piazza itself has a couple of nice restaurants, and although it can be raucous on the weekend it is no more than you would expect from a buzzing part of a city.
Definitely recommended as a place to stay in Rome.