Decent build quality, QC could be a little better. Received two that functioned flawlessly with good edges, one that was dull from the factory (Not un-sharpened, just not at all sharp). All three flipped just like any small flipper: Not that great.
One of the knives had some noticeable scratching on the scales, the others were perfect. The sv35n material holds a decent edge, but the blade material is fairly brittle... this blade was not made for prying and tips break easily when even slightly abused... Ooopsie! Not perfect, but better than the alternative keybar blades I've tried. It's great for everyday knife things like opening boxes, letters, cutting string/twine, sharpening pencils, and flipping in the car.
TL;DR: I've bought three of them, two were *nearly* perfect. It's the best light-duty keybar blade out there that doesn't flip as well as you'd like, but open letters like a boss!