I never met Claudia but she was always very responsive to my emails. She offered to make restaurant reservations for me and gave me great advice about the city, attractions, etc. I did however meet Arianna, Claudia's sister, who was absolutely lovely and helpful throughout my stay.
This apartment is very well located to all of the attractions in Florence and is also around the corner from great restaurants and the Mercato Centrale. The window has a beautiful view of Basilica San Lorenzo -- a veritable room with a view. I highly recommend staying here.