In general, it was a pleasure to stay on this apartment. It is exactly as advertised in the site, the decor, furniture and appliances (all in working order I have to add). The location is ideal for touristic attractions. Two convenient supermarkets are withing 3 to 4 four blocks walking distance. Plenty of restaurants, gelaterias and coffee places to choose from. The one tiny thing which would make it perfect would be to have a washer/dryer available, however is not such a big deal when one realizes that there is a convenient self service laundromat two blocks away. We stayed for almost three weeks, thus doing the laundry was needed ;).
I have to add that Stefan is only a message away for any help needed and in case something is broken, it's fix right away. His response time is fast.
I will choose to stay again at his apartment in any visit to Rome in the future. Highly recommended