I definitely recommend Chiara! She is a great hostess. She sat with us for a long time and gave us tips for places to eat and how to get around the city. She even phoned restaurants and made reservations for us! We had the best florentine steak ( osteria de cambi), that was Chiara's recommendation. She kept in touch with us all the time. She was the perfect hostess.
Chiara's place is brand new, clean, beautifully decorated, modern, well organized. The bed is very comfortable. Everything is nearby, only a walking distance to Duomo and all the other attractions.