Did you go last year? I decided not to go this year based on the fact that the new location will offer even less seating and shade than the Piazza in the height of the day. Last year, it was impossible to get a seat (all were being held while friends of the holders stood in line) and the shade didn't start to appear in earnest until well into the afternoon. So we ended up standing, trying to eat and drink and rush to the next line. It was just too much for a July day. I'd be all about the Vendys in September in a shadier spot, but no way will I hang in an asphalt parking lot all afternoon.
They show a very lovely picture in their advertising of big trees and people waiting in the shade, but that must be New York. I did see a picture of of the Vendys last year and it must have been late in the event because very few trucks have lines (meaning they were out of food) and the shade has reached the middle of the Piazza.
All that whining aside, there was some good food to be had (although the beer was awful) and they introduced me to the korean/mexican truck at Drexel which I now eat at when I'm up there to teach.