I have a Shield and I love mine. But the stock trigger was awful. I did the apex duty carry and aluminum trigger and now it works awesome! I will say as far as quality and comparing that to Glock pistols, I think the MP frames and slides are of much better quality than Glock. The MP's uses stainless steel chassis which Glocks do not. The frame on MP's also seem a lot stiffer and better built than Glock's. The only reason I prefer Glock pistols is they are much easier to work on, they have triggers that are so much better, and the Glock because of their better trigger shoot more accurately. However, since doing the mod on my shield, my shield shoots better than a stock Glock 19