Cristina's place was great. It's across the river in the quieter part of the city but still quite walkable to from the station and the more touristic parts of the city. There is a bus stop just up the road a bit if you want to use the bus. The apartment was in a little dead-end street on the ground floor and we felt safe enough to sleep with the windows open (although the shutters were closed).
The bedroom was spacious and the kitchen/dinning area was nice. The shower was the best shower we've encountered on our trip so far - lots of room and plenty of hot water. The washer came in very handy and the kitchen was well equipped.
Cristina was a fantastic host - she communicated several times before our arrival and met us at the station to drive us to her apartment. Her instructions were great and she gave us some useful tips. She sent a few messages during our stay to make sure everything was ok and sent us a lovely message on our last day.
Thank you Cristina for helping make our stay in Florence so wonderful.