We stayed at this Studio for 6 days in June. Even though it was extremely hot in Rome, our home was always nice and chilly shelter. :) It is located in the very center of the city so you can reach pretty much everything (Trevi, Navona, Vatican, Colosseo, Trastevere) on foot.
The view from the window is stunning: beautiful cupola and tiny typical street. Right there you may find a good fish restaurant. There is also a market on Campo di Fiori, very close to the Studio. We used to buy fresh vegetables there and make yummy salads for lunch at home.
Tommy was friendly and hospitable. He told us everything we need to know and even more :)

The only one issue - it won't be a good solution for oldsters, because there is no elevator and you will be forced to do some sports when going up the 5th floor.

To sum it up, the vacation was great and we would definitely recommend the Studio to our friends!
Thank you Tommy!