We definitely recommend Giovanna's place! Me and my girlfriend stayed there for 3 days while passing through Firenze, Pisa and Lucca. Its location is perfect, within 100m from Ponte Vecchio and Galleria degli Uffizi, which helps a lot when visiting Florence and coming back late at night after having dinner in one of the great osterias Giovanni has pointed out to us. The breakfast helps a lot when you want to start your journey right away visiting touristic places. The bathroom was very clean and with hot water. Although she alerted us that the shower needed some fixing in its doors because recently she had hired someone that did a poor job repairing them, that was not a problem at all. Since it is a building in the historic city center, there are somewhat 2 floors of stairs to go up, like most of buildings in old Florence. To us, that was not a problem, but I should point out that to people not travelling light (with lots of suitcases or possibly little children) it may be a little tiring checking in and out.