Absolutely terrific! Michele may be the most professional, prepared host I've ever stayed with, and his apartment is beautiful. It's incredibly close to anything and everything you'd want to do in Florence. In 3 nights, not once did I take a bus or a cab.
Do yourself a favor and look through the guidebook he provides--it's worth its weight in gold! He is a very considerate, conscientious man and has gone out of his way to show you non-touristy spots with FANTASTIC food and wine. I stuck to his suggestions, my food experience was wonderful.