I picked mine up today but have yet to shoot it.
Regardless, holding it, it's pretty nice, wish it had some rails on the sides and top for mounting stuff, but beyond that I like the idea of a synthetic stock like on the SS version, and the BEST feature in my opinion is the flash hider, both for function wise and to protect the crown of the muzzle.
I've got a second one on order for next week and hope to shoot them both soon. Nice and light, short and handy.
Kind of like an M1 carbine sized .223 gun. Feels smaller and handier than an flat top 16" AR.
PS - Buy mags NOW!! I ordered 6 from CDNN so I have 8 between the two guns (his and hers).