We absolutely loved staying in this apartment. 9th floor, elevator, 2 balconies, 1 roof top terrasse and everything you need in the apartment. Ugo is very helpful and easy to reach and he was very accommodating with a late check out for us as our flight departed late in the evening.
The area of San Giovanni is not dead center of the touristy area, but that is only a good thing. Local transportation takes you there easily within 20 minutes (we preferred the busses) and then at the end of the day you can retreat into something real and liveble. In the area of the apartment are many opportunities to experience real life in Rome. Great local bars/cafés and restaurants, shops and lovely food market in Epiro. We took a day walking in the area and further south in Appia Antica - that was by far the best day in Rome. Highly recommended!