Location was perfect, and the apartment was very nice - it more than met our needs. Once we were settled, Emanuele took us on a 1-hour tour of the area, which included pointing out places we would want to visit. He was very proud of his city, and very knowledgable - and very friendly. Communication was excellent. We chatted for over an hour both on check-in and at check-out.
The strongest endorsement I can give is that when we return for Florence (and we will!), we will definitely stay with him again.