I just went up last Sunday. Never going on the first weekend again. It was reining and cutting. They took for EVER to get through the classes and I was quite bored. Also, only half of the vendors were set up, but I still came out of there with bags :) We usually go on the roping day (last day of Congress) and see all our friends, but this year I wanted to try watching the reining and cutting, thinking it would be fun. Not so much. I think I watched 4 horses in each class then went shopping the rest of the time.
But overall, its a BLAST! I've gone the past 3 years. You will drool over everything there is to buy!