This is not actually a restaurant, it's what in Italian is defined as a wine bar, a place where you can taste different wines while you eat appetizers for free (you only have to pay for the wine) or order an entire meal if you want.
The place is really nice, with many young people and some travellers. Remember that on Fridays and Saturdays it can become very crowded for the so called happy hour from 7:30pm to 8:30pm. The atmosphere is sort of romantic, so if you want to dine with a special person, this is the right place.
Ask for directions to reach this restaurant, because it's not so easy to find.