So the gun has been in my possession for about two weeks now.
Initial impression is this is a really nice gun. I tried all the mags and they seem to fit well, and at first all of them the slide locked back on. I took it to work and cleaned it and lightly lubed it, it then developed an issue with locking back. I took it to shoot and put 100 rounds through it, very fun smooth shooting gun. I have to drift the front sight over, it shoots about 5 inches left at 15ish yards and the front sight is visibly off. You'd think from the factory they would center the sights. In the 100 rounds I had only one Brownells mag that failed to lock back on last round, the rest no problems. I had one fail to feed malfunction but that was it.
Initial impressions on the magazines, I really like the CMC Power mag, it feels smooth, feels sturdy and gives the most positive feeling when locking back on the last round. I'll probably get more of the CMC mags. I initially liked the Cobra mag, but after playing with it more and using it I'm not sure I like that as much as the CMC and other brands given price and availability. Brownells 8 rounders, they work well, I like them and the price is even better! Wilson Mags, they work, and are readily available. I keep buying them with my Cabelas points, and have a few Cabelas gift cards to burn up on them.