If you visit Florence this is the only place to stay. It comprises the top 4 floors of an old Florentine tower just downstream from the Ponte Vecchio.
The views from the two rooftop terraces are unrivalled and on a balmy moonlight night with a glass of very decent wine from the honour bar and my wife by my side I was in seventh heaven.
The staff are nothing less than wonderful, they even went to the trouble of DHLing my favourite old straw hat, inadvertently left in our room. Don't think hotel, think comfortable town house where you are a welcome guest, I can't wait for my next visit. They do only serve breakfast but quite honestly with so many top quality places to eat within a very short walk you wouldn't be dining in anyway.
One small warning, the hotel is right on the top fashion street in Florence, Ferragamo is opposite for example, so hide your wife's credit cards!!