I have one.
One thing I should point out immediately, the blade hole is not for one-hand opening, and indeed is badly placed for that. AG told me it was just there to help with 2-hand opening, if you want to use it. He specifically put it way out of the way so you wouldn't be tempted to use it one-handed.
Whether or not you like this knife definitely depends on your expectations. It's got very good edge geometry, and the blade shape is useful. The smaller size means this knife won't replace your full-size santuko for kitchen chores, obviously. But as a travel and picnic knife, I love it. The downside is that the thin and somewhat squared sheetmetal handles aren't the most comfortable things in the world, and because of the size you won't always get full knuckle clearance, so depending on where you're working on the blade, you might have to make sure the handle is hanging off the board.
My summary is, if you've never wished you had a smaller more compact kitchen knife that folded for safety, for travelling/camping/picnics, then you probably won't be happy with this knife once you get over the gimmick factor. But if you do have a niche for such a knife, and are willing to accept some handle compromises, you'll really like it. I definitely do.
Joe