I'm torn on it.
On the one hand, I like the design, I like that it uses Glock mags, and the expected retail price is nice (I've seen pre-orders in the high $400s).
On the other hand, I don't know what I'd do with it other than consume ammo. Yes, 9mm is cheap plinking fodder, but so is 223. I already have a 223 AR carbine. For "home defense", I have the AR and a thoroughly vetted 12g with all the bells and whistles.
However, on the gripping hand, this could be a nifty centerfire for my kids, what with the low recoil, reduced noise, and adjustable LOP. As a reloader and caster, I could probably come up with some interesting loads.
I don't need it, but I want it. I suppose it'll come down to independent reviews, the street price, and how it feels in my hands.
Chris