Marco and Laura are the best hosts that I have ever had through Airbnb (and I have had several very good hosts). Let's start with the apartment itself: it is huge for Florence, clean, and beautiful. The terrace is delightful and Laura does a wonderful job of gardening it so you feel almost as if you are in a garden retreat. It is in a cool section of Florence, just over the river from the downtown area, but still an easy walk to everything. Lots of great places to have coffee or eat nearby. Second, Marco and Laura are simply wonderful hosts. They are enthusiastic to have visitors and excited to share their city and their recommendations with everyone. The few times that something went wrong ( we stayed with them for several months and very few issues ever arose) Marco immediately responded and fixed the problem. Finally, we had two small children to whom Marco and Laura were very very nice. The space and the area of Florence were great for kids. There is a wonderful park nearby.
Marco and Laura also recently updated the wifi so that it is blazing fast, which is a huge bonus.
In sum, I cannot say enough positive things about Marco and Laura and the apartment. This was truly an outstanding experience.