My wife and I stayed at Adriana's apartment for 5 nights on our honeymoon and were very pleased. When we arrived, Adriana was there to greet us and give us a great deal of preparation and help for places to go and places to eat around Rome, as well as orient us as to where we were located. She was very friendly and helpful. Adriana also did us a huge favor by lining up an excellent and professional driver at a reasonable price to bring us to the airport on the last day of our stay.
The apartment itself is centrally located - restaurants, cafes, and parks in walking distance. All of the main Roman tourist sites - the Coliseum, the Vatican, Ruins, etc. are within a 20-30 minute walk (at most). We walked everywhere and did not have a car (or need one).
The apartment is beautiful inside with high vaulted ceilings in a lovely old building, with a beautiful bathroom, excellent air conditioning, and everything we needed.
The only complaint we had was that the wi-fi network in the apartment was not the best and should probably be replaced or strengthened, but that is a very minor issue and easily fixable. You're probably not going to Rome to hang out on the wi-fi.
All in all, highly recommended!