Filippo was a wonderful host and Daniel was communicative throughout the entirety of my stay (three months) assisting with any issues as promptly as possible. There were five of us staying at this home and he was kind enough to cut keys for each of us. Given the size and one bathroom, for a long-term stay I would suggest four is an ideal number, though perfectly doable with five if short-term. Though it is listed as fitting six this is not possible; there is a single bed and two doubles.
The location is not on the "picturesque" side of Florence, which of course is near the Duomo and beyond, but it was perfect for us to access the station within a ten minute walk.
The space is modern, plenty of linen and towels provided, and a very well-equipped kitchen. I would therefore highly recommend this apartment.