How well does the Artifact blade stay in place? Obviously, it would be bad news if that thing opened while it was in your pocket. I'm assuming that's a problem you haven't had?

I have a Shard, but it was a little too stabby in my pocket and the bottle opener didn't have enough leverage so I've gone back to my battered but functional leatherman micra.

It's literally an X-Acto blade. You just pop a new one in when you need it (or when it tarnishes more than you can stand.

I've looked at that for a while. I carry a small Leatherman Juice, but it is bulky. How well does the blade sharpen, or do you just replace it?