My stay at Samy's place was a comfortable one. The apartment is located a few meters away from the Basilica di Santa Croce and it's adjacent piazza where events are being held from time to time (which can last till late in the evening). This was no issue for me however. Samy made sure I was received well and had all info I might need about the local area, including where the nearest supermarket is located.
The apartment had everything I needed, although I felt the bathroom (esp. the shower) could have been a little more clean.
My arrival was later then planned due to a delayed flight, but Samy waited for me despite being late for her work. I really appreciated that.
It's just outside of the main historic centre, thus away from the massive crowds, but still in a very lively area. All in all I can recommend this place for anyone looking to stay in Florence for a few nights.