I used to live in Florence and knowing how hot it is in August i looked for an house outside the city with pool. This ended up being the right choice. Everything was just perfect, the house is very nice and spacious and has all the amenities one can need, the host is so responsive, i'll definitely be back here every time i need a place to stay during the summer.
Just remember you'll need a car if you stay here and get some mosquito repellant!