Mario and Domenico have put together a wonderful guesthouse. Very clean, excellent services (they change sheets, towels, etc every three days), comfortable, and tasteful accommodations. A quick trip to the city center by tram or bus, both of which are close to the guesthouse. They know Florence and are happy to share their wealth of information. On top of that, they will point you in the right direction and do anything they can to help you with any problem/issue you may have. It doesn't matter if it has to do with your room, an issue with the tram, whatever...they are happy to help you. Great people and great space all around.