My friends and I ate here 2 days in a row - we had to go back as we were craving the awesome tomato sauce they use on their pizzas, I could seriously eat just the sauce! We ate in the pasta & pizza section. I have to say get here early - you can't reserve and this place is so popular you will wait awhile before you are seated. Also don't expect a quiet lunch - this place is loud, busy and can be overwhelming for some.
Note: if they offer to sit you upstairs in a private room, don't do it! We were seated in such a room on our first day and it was rather claustrophobic and really warm.
This place is a lot of fun and I would definitely come here again if only just to eat that amazing tomato sauce!