I hesitate to write such a glowing review because I don't want the secret of this place to get out, but I can't help it. The treehouse at Casa Barthel is amazing. It's cozy, so don't expect a ton of space, and the bathroom doesn't provide much privacy if you're sharing the space with a partner, but other than that, this is the dream scenario for an AirBnB. It's location is close enough to Florence to make it an easy trip into town, but you'll probably have to pull yourself away because the property is so relaxing and nice. I'd recommend renting a car if you stay here though - it'll be much easier getting to and from when you need to. Can't recommend highly enough.