I actually really dig the way Andy Kubert drew the new costume.
That said, Action #5 was awesome. I loved almost everything about. The Anti-Superman Army thing threw me off. That was really it. I don't really like how Morrison put a hold on one story arc just to introduce two more. That's something I took issue with on his run on Batman, too. It'll all come together, I know. But right now, it feels sloppy. We'll see where it goes. Otherwise, everything up to the Anti-Superman Army and the back-up story about Jonathan and Martha Kent trying to have a baby was just pitch perfect.