Nico is great. His parents picked us up from the train station since he was gone that day, he dropped us off. His dog Spina is super awesome, his housemate Andrea is nice, he has plenty of recommendations on what to do in Florence, and may even accompany you if you're willing on your sightseeing. The apartment is about a 20 minute bus ride on the 6 line from the city center, so not too bad, though it means some waits if you stay out til late. Also, make sure you bring your mosquito repellant. Definitely recommend Nico's place.