I lived in Fabrizio's apartment for 3 months, and I can wholeheartedly recommend it. The apartment is very well located, on the first floor of a nice building near Piazza Navona and around the corner of Via dei Coronari. The flat has everything you need - air conditioning, a full-equipped kitchen, a renovated bathroom. The flat is spotlessly clean.
There is a fruits and vegetables stand right on the ground floor of the building, a cute Salumeria just on the opposite side of the street and multiple grocery shops nearby.
Nearby there are charming cafeterias with delicious coffee, where the locals come in the evening for aperitivo.
The contact with the host is excellent, Fabrizio is very helpful.
I highly recommend!