Guido's place is a beautiful apartment right in the historic heart of Florence. You can be anywhere within the district in under 15 mins by walk. The place is clean well maintained, and Guido is very responsive to any queries.
While amazing, a note of caution for travellers with luggage. The apartment is up four flights of relatively narrow stairs. And it could be hard to haul up 50 pounds of luggage up the stairs.
Other than having to deal with the luggage, this place provided us with the perfect place for our exploration of Florence.