Stayed in this lovely apparent which is placed in a very cozy area with very short distance to cafe's and restaurants, and only 25 minutes walk from the Colosseum, and 35 minutes walk to the vatican.. If you want to go for a shopping spree, the downtown shopping area is not more than a 15 minute walk away. Don't consider a rental car unless you want to get outside of Rome.
My only complain would be the balcony which is a little claustrophobic, but this could easily have been improved by removing the big orange tree which blocked out some of the light.. Everything else lived up to the pictures, and I will highly recommend this apartment!