The jeans are really awesome. They're a super good fit (I usually wear a size 31" waist, these are 30" and are exactly how tight jeans should be IMO).
Fabric seems pretty good - no Levi's, for certain, but considering the price, I can't complain. According to the tag, 3% of the fabric is spandex, which results in the jeans molding into a skin-tight fit comfortably.
Also, at least with this pair, the quality of the work is very good - no loose threads, no sloppy lining - I can't find anything to bitch about, quality-wise.
Only complaint is the zipper - I'd much prefer a button fly, and in addition, the zipper doesn't seem to be very great quality, feels sort of flimsy. However, again, for the price, I can't complain. Just pointing it out.
Anyway, these are incredibly cool, and an absolute steal. Just make sure you can fit into these - they really are skinny fit!