This is a very good option a bit outside the main attractions of Florence but near enough to walk in 15-20 minutes. It's great that it's close to the river, which makes for a nice walk to the Uffizi and Ponte Veccho. it also doesn't take long to walk to Piazzale Michelangelo. In the other direction are Sant'Ambrogio and Via Gioberti which give a lively feeling of local, non-touristy life and have great dining options. In all the area gives more of a feeling of living in Florence.
The flat is easy enough to get to from the SMN main train station via bus 14 (as well as others with a short walk) Lina is an excellent and very friendly host. She offered recommendations for nearby restaurants and bakery and they were all fantastic.