Location, location, location! If you want to explore Firenze, this is the best location possible. Steps to Ponte Vecchio, Uffizi, Duomo, everywhere. Guido was very helpful, with great restaurant tips. The apartment is clean and well equipped. I would stay there again. Recommended.
PS: since you're deep downtown, the buzz starts early in the morning, with people carrying goods in noisy carts. Not that bad, though.