Yes. Everyone is right. You are going to wait. I would say that it is worth it. I think this place sustains a small # of bars in the area solely on the traffic they get from people waiting for a table at Libretto.
I have tried about half of their pizzas and I would say that the margherita is still my favourite. Simple and classic. The pizza dough is so good. Chewy, delicious. It reminds me of naan. But pizza naan.
The pear and arugula salad is awesome, and the duck proscuitto is great too, but it is all about the pizza.
Save room for the affogato.