We had dinner at the garden section of the Ristorante, which is situated a bit aside from the hustle and bustle of the main square and is quite nice. Kudos to the kitchen. The tuna carpaccio was fantastic. The Chianti classico was a real treat. The music in the garden was also very fine jazz and R&B.
But the service was very disappointing and unprofessional imho. At first the chief waiter was very friendly, but when we ordered only 1 dish and a glass of wine per person (we had a very late lunch just 3 hours before and were not hungry at all) he became irritated and allowed himself to comment on our choice, so we could hear him. Then at one point 3 different waiters at intervals of 15 minutes came one after the other to ask us whether we had finished our dinner. I even made a bet when the next one will come with the same question and I guessed correctly.
I left them a generous tip only because the food and wine were great. But the chief waiter was a real disappointment.
Otherwise I recommend the place, just be sure to order a lot of food not to make them feel offended :)