Let's start with the negative comments. Because that list is many times shorter than the positive one. As already reported by others; yes the square can be lively (in itself positive) and yes that can also last until the early hours. By closing the doors and windows, the noise in the apartment is already substantially reduced. And there is a correlation with the outside temperature and the activity on the square. The better the weather, the livelier the square. But this corresponds to the desire to close the windows because of turning on the air-conditioning, so problem largely solved. Yes, even with windows closed you can still hear city life. I slept through it. There were two exceptions where I needed earplugs; lifting the corona curfew and winning the Euro 2020 by Italy. Furthermore, the bed is of good quality. But for a long stay it can be on the firm side. And if I really have to come up with a negative point, be warned that some doors are only 1.95m. :-)
The positives: It really is as gorgeous as the photos suggest. Not only the veranda, but also inside it is warmly and stylishly furnished. Clean. And what a view. Also from the bedroom. Delicious still in bed with the morning sun (if you want) and a view of Santa Croce. Be aware that you have the best terrace in Florence and you start to avoid commercial terraces. This will save lots of money, even if you buy the best wine in town to drink in the apartment. If it rains you will be dry. When the sun shines you are in the shade. You can watch the tourists (No you are not one of them as you will feel straight as an inhabitant in this place) come and go to marvel at all the beauty you are part of and you have the best view. The veranda is spacious and attractive and more like an outdoor living room. The costs and effort (strong climb, 100 steps) that may be involved in relation to other sleeping places will be reimbursed in a generous amount. Great to catch your breath after a day of impressions and sightseeing in your own environment with an aperitivo and recharge for the evening. The location is perfect: on the edge of the slightly too busy center, within walking distance to everything, including a nice nightlife area a few hundred meters away. I can be brief about Ginevra and Lorenzo: very warm and welcoming. If you are still in doubt, I enjoyed being there for 1 month. And I wish I could have stayed longer. That says enough I guess.