This is a very great option to stay in Florence. I made everything on foot. It was really clean. The hoster showed the best places to go on a map. The first time I tried to get to the hostel I got confused with the florentine house numbering. I ask for help on whatsapp and the hoster help me proptly.
I sugest ask for a cappuchino during the breakfast. There is an excelent barist in the coffee shop that the hostel use.
Good luck and nice trip!