Our stay in Lucia's place was wonderful and we would stay there again without hesitation. Its secluded, quiet location in the hills outside Florence was well removed from the hustle, bustle, noise and throngs of tourists in Florence and was both a relief to retreat to after a day or evening in Florence and a great home base from which to drive to Sienna, Pisa, or wherever. The listing is accurate in its description. The cooking facilities are fully stocked and the AC, located on both bedrooms worked well. They have a beautiful yard perfect for sitting and listening to the secadas buzz in the evening while watching the sunset.
Lucia and her son Fabio (who speaks very food english) were very friendly and welcoming and accommodated our slightly early request for check in and provided input on restaurants and sites.
The only downside was poor WiFi in parts of the apartment (Master bedroom had no bars) and some internet intermittentcies (which they took care of promptly with a reboot). The coverage issue is no doubt due to having the WiFi router located in the adjacent family living space and the thick stone walls of the structure but could be mitigated with a cheap WiFi repeater centrally located in the apartment itself.
Also, for those who want what we found to be the best Gelato in Italy (after 3 weeks and many shops sampled), try the nearby "Gelateria Malotti". It is a small neighborhood Gelato shop well off the beaten tourist path. Excellent. Keep in mind though that parking is sparse so start looking for a place to park when you are within 3 to 4 blocks.