I was there Monday and Tuesday. It ran most of the day Monday (got my first ride at about 10PM, it was awesome), but didn't start until after 6PM on Tuesday.
I got my ride on Tuesday guys, but I went on Sunday just to be safe. Didn't start til after 6, but I got in line just at 6, so the wait was only around an hour. In two trips I've managed 4 rides and I'm very thankful!