My friend and I stayed at Elena's place for the last week and it was great. Elena and her husband were there to welcome us when we arrived and they gave us a few tips on what to see and where to eat in Florence.
The place was very cute, just as we expected. It was very clean, the kitchen was well equipped and we were given everything we needed, including a very strong wifi. The location is great, it took us 15 minutes (on foot) to Cattedrale di Santa Maria del Fiore and Ponte Vecchio, and just over 5 minutes to Santa Maria Novella train station. There is also a store and a pharmacy just a minute away.
We really felt like home and would love to stay there again. :)