We had a very pleasant few days in Paolo's place. It is very central. We walked there from the train station and we were within walking distance of most of the main attractions of Rome. Within a 100yds is the restaurant Hostaria Romana where we ate two nights. Food was excellent, authentic and reasonably priced. Word of caution, you do need to book ahead.
The apt was perfect for our few days, clean, well equipped and very comfortable and Paola was very helpful and accommodating with our arrival and departure.