Our stay at Guiseppe's place was enjoyable for our week in Rome. The location was great if you wanted to be right in the midst of the old city as it is literally metres from the Pantheon. We found this to be a mixed blessing as the area is very crowded with tourists from early in the morning until very late at night although the apartment, which is located at the rear of the building, is very quiet.
The flat itself is tidy and has most badic things that you could need. Whilst we stayed the fridge wasn't working very well and in the heat of mid summer this was not great for us, Guiseppe was going to address this though. Also, the flat had good aircon in the living area but the bed room didn't have any so if it is really hot, the bedroom lacks some airflow with the windows being closed.
The laundry is on the rooftop which also has a sitting area that we used a bit, we liked this as an escape from the crowds at the end of the day.
I would recommend Guiseppe's place especially if you want to be central to the main sites in Rome.