Great in just about every way - Alberto was a fantastic host, and the apartment and the location was perfect for us.
Alberto was very gracious, and he made sure there were plenty of clean sheets and towels, as well as wi-fi, coffee and all the kitchen essentials. The apartment was comfortable, spacious, bright, and clean, on a very quiet side street that was just a couple blocks from the Trevi Fountain.
(The apartment was on the fourth floor with a tight staircase, so a guest with a mobility handicap may want to take that into account.)
Overall, very highly recommended, and a thank-you to Alberto.