I would like to start off by saying that this was the best place my boyfriend and I stayed out of our entire 2.5-3 week trip across Italy and greater Europe. On top of the good looks, the amenities truly delivered during our 2 night stay (wish it could have been longer). Most places are not as good as they appear online, but this one is BETTER. So if you're on the fence, I'd say GO FOR IT. The bikes had me sold right away, but once we got there we discovered all the additional benefits.
The location is very favorable if you are going to be traveling through the Firenze SMN train station. However, even just for exploring the city in general it is a great jumping off point. The bikes were an excellent touch and we had so much fun zipping around the city on them.
One of the best parts was the truly comfortable bed. The bathroom was also perfect (including bidet experience) and the shower had plenty of hot water for two of us.
Cosimo was also extremely hospitable upon meeting us for check-in and even provided us with vital information and tips on transport for our planned day trips to Tuscany. The biscuits from his mother and candies on the towels were a kind, personal, and delicious touch. ;)