I got mine this morning, and while it's possible to fail it while deploying it via the flipper tab, I suspect that's the nature of the beast with button locks. Easy one-hand operation, flawless fit and finish, and really comfortable in hand. One thing: I don't love the pocket clip. It's too tight to the knife, and too long, making it difficult to get out and back into your pocket. I traded out the pocket clip from my Elementum button lock, which is much shorter and easier to deploy, and that did the trick just fine. All-in-all, a great addition to my EDC rotation!