Firenze was my favourite city in Italy. We went to Rome, Firenze, Venice and Milano.
Virginia met us at the apartment and explained everithing to us. Gave us tips about restaurants and places to go and how to get there.
The place is really close to the Central Station so if you're coming from train thats an excellent option.
We were in 4 adults and 1 baby and it was everything alright. The shower is very good and the Central Market is like 50m from the entrance so you'll have a lot of cheese, wine, salumi and many other local foods right beside your door.