This option represents great value. For the price we paid, we were very impressed with the quality of the apartment. The bathroom and kitchen seem to be recently refurbish and include all items you may need. Air conditioning works great. The apartment was clean and tidy. The location is brilliant - accessible to key sights and also the trendy parts of Prati which are more 'local'. A perfectly comfortable stay.
In regards to some of the downsides of the apartment which other people have mentioned (e.g. fluctuating water temperature, etc.) please do be aware Borgo Pio is one of the most ancient parts of Rome - built way before modernity. Although valid to point them out, please know these issues aren't unique to this apartment.