I would definitely recommend this apartment and its amazing hosts to those who are going to visit Florence.
First of all, the location is superb - you can easily reach all famous Florence sights or museums as well as all most commonly used transport lines (trains and buses to other cities or to the airport). 5 min walk - and you are at home.
Secondly, the apartment was very clean, comfortable and well maintained. There are many various kitchen utensils and a powerful hairdryer (ladies, whose hair is very long, will understand!). The apartment is VERY quiet (you can hardly hear any sounds from the street) and there are good blinds so that you can sleep very well. The neighbours are very quiet too - we met only one person during 7 days of our stay.
Thirdly, the host was very responsive and helpful. Our huge thanks go to him for this wonderful trip to Florence.
The apartment would be PERFECT for a couple (friends or husband/wife) but at the same time can accomodate four people.