I didn't go last year, but was thinking of checking it out on Sunday. Are the lines really that bad? That might deter me from going. I just wanted to casually stroll around and eat a ton of food! (Why must everything in NY be so crowded?!)
to my knowledge, there's only been one so far (last year's, which was only one day), so i don't know what it'll be like this time. at last year's i got there around 1 or 2 in the afternoon, expecting to just saunter in, but i was greeted with a wrapped-around-the-block line for admission (plus another, slightly shorter one for the Cinnamon Snail food truck parked outside). i finally got in a mere 20 minutes before the final admission (which was 4:30 or 5; i forget) and it's packed inside. don't think i got to see/try everything i'd wanted to, due to the combination of some samples being completely eaten and difficulty maneuvering around the sheer number of people.
i think it's at the same venue this year. hopefully spreading it out over two days will alleviate the crowd issues.