You cannot put a price on the view from the terrace. We feel so lucky to have been able to stay at Luca's flat. His communication and assistance at check in was superb and, travelling as a couple (both over six foot) we had no dramas with the space or the size of the bed. Yes, it is a smaller flat however it never felt cramped or uncomfortable.
Best view in Florence and best way to cap off a day of sightseeing by sitting there with a glass of wine and seeing the Duomo and Baptistry all lit up and peaceful.