We, a family of five, had a pleasant stay at Valentina's Trastevere accomodation. It is modern, spacious and tidy and very well located. All sightseeing highlights at Roma you can cope within two or three days - as St.Peter's Cathedral and Vatican, Colosseum, Fontana di Trevi, Spanish steps are situated in walking distance from the appartment and can be easily reached - even twice a day. During summertime, don't worry, there's air condition in every room.
If you are travelling by car, we would recommend to get some information about the Traffic Limitation Zones (ZonaTrafficiLimotado) and parking places on beforehand. Although it's not so bad as you might think.
We can especially recommend Valentina's Trastevere place to familys or a group of friends.