I see posts on lots of forums complaining about the fit and function on just about every brand. You know how it goes. Either brand X doesn't perform or the finish wears off. No brand is perfect and lemons happen. I'm sure we have alot of HK owners here and I'm one of them. Please list any problems you personally have had with your Hk. I'd like to avoid any "second hand" stories if possible.
Personally I have owned 2 USPc in 9mm V1. I bought both of them used and have never had any issue. I don't have a round count but i'd say i'm over 7k on this one. The finish still looks great.