They are excellent shooters. Both are in .223 and I use exclusively 55gr rounds because it better suits the high barrel twist rate. The quality is amazing - it's the Kalashnikov platform on ball-bearings. It would probably be even more fun to shoot in 7.62x39 though.
And yeah, that's exactly why I slapped a Galil top cover on it for the time being. I just didn't expect it to work as well as it did.