Paolo is a great host: friendly and quick to answer your questions. The place is spacious, bright and clean. The air conditioning works extremely well even though it was very hot and humid outside during our stay. The location is good and some really nice restaurants nearby such as Osteria ai Promessi Sposi.
Something to consider: there is no lift/elevator and the flat is on the top floor. This wasn't a problem for us but to some it might be.