I missed last year because of some family stuff, but my friend went. He described it as very similar to Too Many Games, but with less vendors, and a bit smaller. So it wasn't too crowded last year and I think the parking was pretty good from what he said. This year it seems like it's exploded, they've got a lot more youtube celebs coming, and supposedly it's going to be bigger.
He wasn't too impressed with the vendor action last year, not many deals to be found, and if I remember right the vendors that were there didn't seem too into haggling. I felt that way about Too Many Games this year too, but may have just been the vendors I was trying to deal with. One place had a filthy, and I mean FILTHY AV Famicom, with no cables but the AC adaptor and he wanted like 120 or 130 for it and would not budge on that price.
I will definitely be there this year! I know I haven't been on this site very long but I'm all for meeting up with people and grabbing food.
This weekend is also a toy convention in the same place that supposedly gets some good video game action.