Giada and Daniele are very friendly and generous hosts.
I stayed with them for a week in May 2013. This was my first time using Airbnb and I was a little bit apprehensive. They made me feel very comfortable and offered a lot of useful info about places to see and nice restaurants to try in the neighborhood. They were always available if I had a question.
The apartment is very nice and functional and quiet. It is located in a very nice residential area about 15-20 mins walking from the center of Florence. A nice breakfast was waiting for me every morning.
I felt very welcome and would definitely stay with them again.