Staying in Irene's apartment was very nice. The location was very good, close to all sights (especially Colloseum and Forum Romanum).
The air-conditioning was perfect even with this hot weather. Everything was clean. Furthermore, the private patio was lovely.
The check-in was also good, she let us drop our luggage before the check-in time (which was also earlier than was denoted on the listing, which was great)