I recently took delivery of a .338 Edge from Shawn. It's only been to the range once, so I can't give a full performance review.
I can say it appears very well built. Initial testing is putting 300 grain SMK's into .6" groups on average at 100 yards and I know it will do better. This is just trying different charges of H1000, not adjusting seating depth yet. Also these are the first rounds, breaking in the barrel and fireforming brass.
The brake really surprised me with how effective it is at reducing recoil. I was bracing for impact on the first shot, and it barely kicked as much as an average .308 Win.
So far my experience has been the same as Shawn's many other satisfied customers.
The build took a long time (mostly waiting on components) but it was well worth it. Someone needs to light a fire under Berger's a$$ so they get their .338 VLD's rolling!