My first two had screen issues. The third has a pristine screen, but the slider wobbles a bit (2-3 degrees at most) when it's closed. Not enough that it bothers me, but it's something many folks have noticed, and something they should really fix.

Overall, I'd say build quality is definitely an issue with the first batch. I can't say I'm totally surprised, since it's a new design and the product was rushed to market. I'd expect things to improve soon, because if they don't, it's certainly going to affect sales.