This was a clean, nice apartment, but a bit far from the city center. For example, it was a 15 Euro cab ride from the train station. (I got in at night, so a bus wasn't really an option.) This is a budget option, but even for those on a budget, I think you would have paid at least 10 euros more to be closer to the city center. When traffic is bad, and it often is in Florence, it can easily take 30+ minutes on a bus to go to the Duomo from the apartment. Piazza San Marco once took one hour, in fact. However, the busses do come frequently (except at night!), and you can just get out of the bus once it reaches the heavy-traffic center.
A second issue with the apartment is that it is chock full of mosquitoes! Thus, bring a plug-in mosquito repellant, or you'll have these things buzzing in your ears all night. In fact, this is something which you should probably have in your travel bag generally, and I did at one time, but not on this trip.
FYI -- There is a food/deli type shop around the corner that sells amazing ribs.
Despite the distance and the battle with the mosquitoes, I still see this place as a decent budget option for those who won't go out at night, as you'll certainly pay more in the center.