Booked Francesco's place last-minute (literally the night before I was due to arrive), and I'm so glad I did! He was so helpful, quick to respond, and was kind enough to let me check in early because I planned on taking the earliest train into Florence. The place itself is lovely, perfect for solo travelers / couples and had all the necessary amenities. It's in an ancient clock tower, which made the whole place even cooler (though if you're traveling with a lot of suitcases, take note that there isn't a lift. It's only on the 2nd floor though, so I had no problems climbing). Francesco left me a bottle of Chianti wine in the room, which was a really nice touch as well.
I had absolutely no problems with my stay at all, and it was an excellent base to use to explore Florence. Throughout my stay Francesco was quick to respond to all my questions, and gave a list of awesome suggestions for me to check out (still dreaming of that gelato!). Bummed I didn't get to meet him and his wife this time round, but hopefully will be back again in Florence soon enough - and will definitely be staying here!!