Cristina's flat is perfect for staying in the centre of Florence/Firenze. The flat is less than 10 minutes walk from the Duomo, and is just off one of the main shopping streets. To be honest, this flat would be a shopper's paradise! We really enjoyed the restaurant that is two doors down from the flat, which had excellent food, wine and service.
The flat is also surprisingly quiet, as it's a couple of floors up from street level. It's also very secure, with an entry gate, as well as a serious lock on the front door. There's also everything you could want, from a hairdryer to an espresso machine! I would definitely recommend the location if you are staying for a while and want somewhere that feels like a home.
Cristina herself is also wonderfully helpful. She provided us with excellent directions to the flat, and suggestions for what to do during our stay. She was also very helpful in organising our arrival, as we were travelling by train, and didn't know which one we could get, or precisely what time we would arrive. If I were coming back to Florence, I would definitely want to stay here again!