I looked at some of these at a gun show last week, and they seemed to be well-made. They appeared to me to be of significantly higher quality than most of the other after-market Mini-14 magazines I've seen. They also make 10-round Mini-30 magazines. It seems like I read somewhere that they had a bad batch, but had corrected the problem and would replace any faulty magazines. Given their apparent quality and fair price, I will probably give them a try. I do also wish they made them in stainless - stainless mags just look better in a stainless rifle, and it's nice not to have the finish wear off. If they came in stainless, I'd have already bought some.
Doug