Alessandra and Roberta's house was a very good pickfor staying in Firenze. It's a bit away from the historical center,which for me was a great plus, as it was more quiet and I could actually more of the Italian day-to-day. However, being far away from the center didn't mean not having any transportation nearby,on the contrary, as there were many options right next to the place.
Also, as many people said, the pictures don't do justice to the actual house, as it is much bigger and prettier. Also, the houses have pretty much everything you need for a comfortable stay in Firenze.
I hope to stay here during my next trip to Firenze!