Thalia is a wonderful host - very warm and ready to share her tips of Florence with you. You will be living across the road from the greatest gelato in town. Have 2 a day.
The room we (my friend and I) were in was fine. There is street noise but it dissipates eventually. The wifi works best in the kitchen, it works intermittently in the big room.
It feels safe and there is everything you need. You are far enough away of the craziness of Florence but close enough to dip into it. If you are on a budget I recommend this place.