Thomasso is a great host. He was extremely helpful in arraigning transportation to and from airport. His detailed written review of local restaurants was helpful.
The half basement configuration of flat would be great during the warmer months. (it would stay cool). But there was limited views to outside, which seemed confining when staying inside during a rainy day.
This flat adjoins a small police station, so we always felt very safe coming and going at all hours. The flat was very quiet. station was never noisy and there were very few cars.
Great location to access Vatican and museum. Less than 30 minute walk to historical sites and active night life. Lively restaurants, but can get crowded with tourists. (maybe that is just the nature of Rome.)