I shoot a Warwick Tactical 2011; fully built from the manufacturer. It is superb and certainly a great deal in the world of 2011s. Shooting it along side friend’s STI DVCs it is noticeably smoother and better finished. Not sure what the wait on a complete pistol is these days, but a few months back it was over a year and they weren’t taking orders. The pandemic may have changed that.
This is all just to say I like mine and would recommend them. I have no experience in building them.