Elisabetta and her husband Claudio are wonderful, warm hosts, and my experience was great.
Every question or requests are taken care of within a few hours. The apartment is beautiful, and was perfect during my studies. Location is great, but you can't expect Florence to be quiet at all, when you chose to be in the center of the town.
There are supermarkets nearby for those who cook in, and lots of restaurants to eat out.
I would definitely recommend the place without any hesitation , particularly to people young at heart, as Florence seems to never sleep.