I got this rifle from Atlantic back when they were first released in their Gen2 form (I think Jan/Feb timeframe) and have a lot of time behind it; here's what I've found:
Sustains:
-Takes the VAST majority of standard AK mags (all the specifics are in the video)
-100% reliable with the mags that function in it (see above)
-Accurate
-Has optics rail and doesn't require a claw mount
-Extrememly light recoiling
-Uses a proven operating system
-Fit/finish are very good
-Accepts the majority of G3 accessories on the market
-Good host for a full auto sear
-Barrel is threaded (15x1) for HK sytle muzzle devices and supressors
-Much cheaper way to shoot a delayed roller type action than most that are chambered in 308
Improves:
-It's heavy (just under 10lbs) however this aids in the very low recoil impulse
-Barrel isn't CL/nitrided; of course that would add cost
Here's the full review with lots of shooting, accuracy testing, and a discussion of the specs and pros/cons: