I stayed at the Turtle House over Christmas with my son and we felt very, very welcome.
We had a good dialogue primary to our stay, and Monica was very helpful with details about the area as well as flexible about us arriving in the midst of Christmas Day.
The apartment was totally new and it is located in, what I find Florence's most attractive neighborhood. Very close to both piazzale Michelangelo and Ponte Vecchio, but at the same time I'm a quiet area and a rare exit to a green garden. Everything was just perfect, and I would most definetly return to the Turtle House.