Great value for money place to stay in Florence. Everything is perfect except a big mosquito problem. So don't open any windows and don't sit outside.... We even got bitten when we tried eating our breakfast in the lovely little garden.
The owner is a great guy who gave us a very warm welcome.
If you walk fast you can get to the Duomo in 40 minutes. The first 15 minutes of the walk from the house are not that great especially late at night. There is a bus stop around the corner which takes you to Piazza San Marco in 15 minutes.
The apartment is really nice and even better than expected from the pictures.