I stayed at Albertos apartment for 4 months and it was really great all the way through. It really felt like a home away from home. Enrico and Alberto would always check on me if I needed anything and if there was something I needed they would come within the same day and help me with whatever I needed. The location of the apartment is absolutely central in the most beautiful old palazzo in a very nice neighbourhood, so nice that my Italian friends actually were jealous of my living situation. The apartment is on the very top floor and is flooded with light and very quiet and cozy. Obviously the view of the Duomo from the living is very impressive but even watching the sun rise above the roofs of Florence from the bed is wonderful. The apartment is equipped with everything you could need from AC/ heating to cleaning supplies to any kind of glasses or pans and pots.
Over all I can only recommend staying in this apartment and I am looking forward to booking it again whenever I'm in Florence.