Roberto is a great host, quickly answers, organized our airport shuttle, allowed us to drop off the luggage since we arrived early and provided us with a guide for restaurants, shops in the neighbourhood.
The appartment is fantastic, beautifully decorated with small nostalgic touches. It is exactly as shown on the pictures, if not more beautiful if you actually stand in the place. We were with 2 couples and 3 teenagers, plenty of space, good beds, everybody had their own bathroom/toilet. Great kitchen, well equipped.
Robertos apartment is in the middle of a vibrant part of Rome, close to Piazza Navona with lots of animation, many shops, musea and restaurants. We loved to go to the market (Ref roberto's guide) for fresh fruit, check out nearby roof top restaurants for a drink :-)
One inconvenience : when we were in Rome there was a heatwave (38 C for the week) and despite the thick walls of the building and all the fans, the apartment was very hot, in particular the top bedroom.
Overall we had a wonderful stay and we highly recommend this place.