We had an excellent stay in Florence with What About. While we ended up being moved to a different Airbnb that was not the one listed here, it was much nicer and in an incredible location just steps from the Duomo. Everything major was about a ten minute walk away. Check-in was smooth, the space was clean and roomy. Our only issue was that the listing promised WiFi, but the only internet provided was the public system for the neighboring Duomo, which maxed out after an hour. If you require WiFi, definitely check with them before booking. But the rental was brand new so that may be why it wasn't there yet!