I just finished a polymer80 for my G19. It was a simple process, except I think I would ignore their numerous warnings not to use a drill press for boring the six pin holes. I can get my drill press level and plumb, try that with a hand drill. I had two of the three holes not line up properly and I was able to complete the job having tight pins and a properly functioning gun, but it was an avoidable pain in the arse. I like the frame a lot.
