As others have noted, the terrace is simply fantastic. Whether morning sun to catch up on your travel journal or bottle of wine and antipasti in the evening or simply sit in the dark and listen to the city sounds late at night, it is worth it.
Yes, there is some street noise at night particularly Saturday night but closing the window solves much of it.
Try at least some of Carola's suggestions for food and such, they all worked well for us.
We would certainly stay here again and Carola was quick and thorough in her communication.