It is great place nicely situated in the center of Florence but also close to public transport. Being in the center also means there is a lot of hectic around you so prepare for noise during summer evenings.
The house is great and has everything you need, 2 rooms, great shower, internet etc but the location makes it worth while anyway.
Bianca/Paolo is a great host, responds very fast and helped us out with extra blankets for the sofa as well. Really very friendly. Great host!