I had a great stay in Claudia's apartment in December, for the last month of my semester for studies in Rome. It is a very nice, tidy and clean apartment with practical space-saving solutions for a comfortable and budget-friendly stay.
Both Claudia and her brother were very helpful with everything, from welcome to technical stuff and departure, and I am very grateful to them. Quick and good communication (even when Claudia was sick, poor thing, she replied asap).
The apartment is nicely located, a little away from the most hectic tourist center in a lovely neighbourhood. I used to jog to a large park nearby, or to the river Tiber - for amazing scenery, and otherwise there are plenty of grocery stores, eateries, trains, buses, fitness centers, laundromats, etc., all within a short walking distance.
I felt right at home there, and frankly thought it was a bit sad to leave. Anyway, it's a place I recommend. Truly.
Enjoy your stay!