First, I own several CJRB with button lock and strongly believe they have the best button lock. This is no exception. Drop-shut smooth and strong fidgety factor. The fat carbon inlays are on both sides, which I was not expecting. And they are pretty good looking. I strongly recommend to knife enthusiasts to take a close look at this knife. Due to the high price (for CJRB) one may easily oversee this beaute.