Cristiana and Marco were wonderful hosts! Cristiana was very friendly and spent about an hour with me and the other guest going over the map of Florence. She pointed out the spots locals go to, including some delicious gelato. She also has great insider information on the best way and times to visit popular sights, so you don't end up standing in line for two hours (not hyperbole!). Beyond that, it was just nice to chat with her over breakfast or when I came back to the flat to escape the heat. I didn't see Marco as much but they were both very kind and friendly hosts.