We stayed here for 3 nights in October 2013 following 4 days in Siena. We had a Grand Deluxe Double with a river view. Perfect hotel for seeing Florence, everything to see and do is a matter of minutes away on foot.
The room was modern and tastefully decorated, view fantastic, bathroom ideal for us with a walk in shower. A really splendid breakfast was on offer and the waiting staff very friendly. The rooftop terrace (where there is an honesty box bar for some parts of the day) and a snack/lunch service has the most stunning views over Florence. Front desk/concierge service really helpful.
The hotel is quite quirky in its layout but it's worth it to maintain the charm and beauty of the building it is located in. It is also literally a stone's throw from the Ponte Vecchio. If we are ever back in Florence we wouldn't hesitate to stay here again.