Last time we were there we shared the Antipasto All'Italiana appetizer (a rustic assortment of Italy's finest imported cheeses and sliced meats, including prosciutto, bresaola, mortadella and soppressata), which was fantastic. Excellent quality meat and cheeses. It's only on the dinner menu at allearsnet, but we had it at lunchtime.
For main we both had the Le Originali Fettuccine all'Alfredo. I always mean to try something else, but can't resist this. I think it's one of the best pasta dishes i've ever had. Amazing considering how simple the recipe is. It's the quality of the ingredients that they use that make it so special I think.
I've had the Calamari before too, which was very good, but huge, definately one to share.
Whenever we go at lunch we usually sit outside, and the service has always been superb. It never seems that busy, probably because it's right at the back of the square.