We stayed for 8 days at Cristina and Raffaele apartment. To be honest, we didn't expect such a warm welcome! From the very first minute we felt at home. The apartment itself is located in san paolo, a very nice neighborhood that features lovely cafes, shops, a supermarket (just under the flat... the most convenient way to buy food and prepare it in the well equipped kitchen) and even a cinema.
If you're looking to be surrounded by other tourists from all over the world perhaps this is not the best location for you (although the metro station is really close and connects you to wherever you want, as well as some bus lines) but if you're into mingling with the real Romans, this is certainly a great choice.
We enjoyed the spacious apartment with its two bedrooms, everything was clean and in "ottimo" condition. Highly recommended. :-)