We had a very nice stay at Lapo's place. Lapo is a very welcoming host and gave us many advice -the vegetarian restaurant he recommended to us was a delight ! The appartment is clean and in a very convenient location -right in the center but in a calm street. I would definitely recommend it.
(Only minor drawback is that due to city law the heating can not be turned on before november 1st and the days were starting to get cold! )