It's a very nice flat in a great location. We booked 3 months in advance with an estimated time of arrival of 1130am. Our train reservations changed to arrive at 330pm. We let Maria know asap and she was very rude to us about it for the duration of our stay. So, if you are backpacking without Wi-Fi and using trains, you probably shouldn't stay here. She also got mad at us because the mat dripped water on the floor in the bathroom after 4 people showered and hung it where she told us. She apologized when we left for being rude because we left the place in amazing shape like we always treat homes. However, we would not stay here again.
In addition, you can book tickets for the duomo and the academia museum the day you want to see them at the sites. Do not stress if you do not book ahead of time. Also, Cinque Terre is reasonably close and an amazing experience!