The terrace is incredible - worth the stay alone.
Sara's place is DIRECTLY next to the Trevi Fountain, which is an awesome location. Especially if you want to be within walking distance to many of the tourist attractions - but not if you are looking for quiet/non-touristy streets. It's on the top floor of the building, but it has an elevator to use should you need it (we used the stairs every time except for luggage) - great way to burn off all the pasta! Rooms were simple and kitchen had everything you need if you want to cook/drink/make coffee.