I was there! It WAS really hot, and crowded...I wasn't as prepared for that as I thought so DH & I only lasted a few hours before we left. I went to the expo in Redmond too - spent way too much money! Wish they had more of a "show" at the Redmond expo but the vendors were great. No sales tax means everything is on sale! (At least, that's how I kept justifying buying more stuff!)
I want to go again, and prepare better next time. It was really neat to see the whole town decked out in quilts. I'd never been there before - would like to go again when the show is not on and just check out the town. Looks like a cute place but was hard to see because of all the crowds!