I was able to score a couple of VIP tickets at the last minute today (more about getting lucky than having connections), so I went into it with a friend of mine.
Overall impressions? First, the good: There were a variety of restaurants and food places there that I have wanted to try for awhile, including Trani, Ivy, Kane's Donuts, and Fuddruckers. Lines went pretty quickly, even during the mad rush around 12:30-1:00. Now, the bad: Lots of really rude people cutting in line, walking into other people and not saying anything, and being loud and obnoxious. It wouldn't have been so bad if it weren't so crowded, but it felt like gridlock at times, walking from one place to another, so the rudeness really made things a lot worse than they ordinarily might have been.
I won't get into detailed reviews of the places I went to (I wrote about them on my blog once I realized that the Pats game was no longer worth watching, God bless them), but I will say that I really liked Kane's Donuts, Fuddruckers, and Beard Papa's. Tough to judge anyplace when they are moving food so quickly, but these three stood out, IMO.
Aside from the rudeness and the somewhat steep price for what we got there, I would probably consider going back next year. The food at the BBQ Beach Party was generally a lot more to my liking, but the variety at the Food Festival made it a bit more interesting.