My friends and I stayed 3 nights at Executive Hotel.
It's a 4 star hotel, but it gives you not a flashy luxuriousness, nor plain structural functionality, but a real comfortability that you feel like you're home.
We (3 ladies) stayed at an big American type of hotel before Florence, and the building quality itself was better there(eg. larger and quicker elevator etc), but the service quality and the elegant European classic atmosphere here definitely surpassed it. All the staff were very efficient and provided us warm services from the heart.
We asked to make a reservation at a restaurant recommended in a book(it's name is Trattoria Armando, only a minute walk from the hotel, very reasonable and excellent taste) and the manager, Riccardo was instantly of our service and made one for us. Also, they made a reservation at Academia museum(or the choice of Uffizi) for us for free admission, as a service of staying 3 nights+.
Other noteworthy thing is it's great location. It's less than 10 minute walk from the train station, but I prefer this way since it's more quiet and not very touristic than in front the the station. There're so many nice local restaurants and shops nearby and you can enjoy a nice walk to Ponte Vecchio by the river and the Duomo is also only a 15 minute walk.
It's such a great value in Florence and we'll definitely come back!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC