I cannot imagine a better location in Florence than that of Leonardo's studio, a few steps from Ponte Vecchio. Very good restaurants are found nearby, with the advantage of not being expensive as those in the other side of the river.
The communication with Leonardo was quick and easy in all the stages of my trip (before arrival, during the staying...). He gave me lots of precious hints and tips on what to do in Florence, where to visit, where to buy the best products with a good price etc.
The studio is exactly as in the pictures. It contains all the utensiles a traveler can need.
I highly recommend this acommodation. Thanks, Leonardo!