That was me and no I wasn't. Doug has a Kel-Tec SU-16 Review on this website and it's not the low quality gun you may think. The only problem I've heard is of a guy who went through multiple mags rapid fire and melted some plastic vicinity of the gas port; that's where the hinge for the folding bipod is located. The rifle was still functional.

Will it compete with an M-4 in CQB or a match tuned AR-15 on a range? No, but one of its more important attributes is that the SU-16CA version is available in CA, while AR-15's and many other rifles in that class are not. A lot of us who grew up with the Garand and M-14 thought that the M-16 was a POS; now I have a rifle with even more plastic and it works fine.