Damn, thought I'd got mine first (this morning).
Initial impressions - though some folks have looked at the photos and thought that it might use a 10/22 action, in person it looks quite different (though in operation of course it's quite similar). The rifle breaks down very readily into two pieces with a single takedown screw (barrell/forend/receiver on one piece, trigger group/stock on the other). However, removing the bolt seems to be quite a chore - I still haven't figured out how to get the retaining pin out of the back of the receiver (to remove the back plate and thus the recoil spring/bolt carrier group), and the fairly sparse manual is not much help. If anybody's done that, please tell me what the magic is.
Fit and finish looks pretty good, the rifle is quite light and handles well. The magazines (and the channel into which they insert) are robust steel, with a pulldown button like Ruger 22 target pistols, and this makes loading a breeze. I worked a mag full of dummy rounds through it; the oversize charging handle is a nice touch. The bolt locks back when magazine is empty; a nice feature, but there is no bolt-release catch; once locked back, if you want the bolt to go forward it seems you have to either remove the magazine and pull the charging handle back, or put in a loaded magazine and cycle the bolt.
I've put an inexpensive Bushnell Rimfire 3-9 on it, and I'll be taking it for a shoot next Wednesday with a brick of Stingers. I'll let you all know how it performs compared to the trusty 10/22.