Everything was just as Giampaolo describes. Very clean, quiet and private with a large bathroom. And Giampaolo was very flexible about the time of check-in and check-out which I found very helpful and convenient.
Be warned, it's an old building with lots of stairs and no lift (as he describes), but the location is very good, just a few minutes walk from Ponte Vecchio. I also thought the mattress was just okay, but not great, quality.
Otherwise, I highly recommend staying here!