Bought it today, just finished reading it. I was more excited by the Dixon story in issue #0 than what we got here. It felt like more happened in that prequel than in this, the first issue of the story. There are some things I like, some things I'll see how they play out, and some things I'm worried about. I like how guys like Dusty and Frostbite have jobs outside their element. I like Scarlett's role as XO of the Pit. I like the art. I like that Wraith may actually be in this comic, showing that IDW is willing to go for more than just the standard rosters.
I'm okay with she-Dialtone. I'm worried about how some of the B-list Joes are getting characterized. Beachhead is chatty and has no memory? Deep Six did not seem moody or anti-social. Dusty came off condescending. Reboots work best, in my opinion, when the characters are recognizable even if their backstories and relations have been cleaned.
At this point my main worry is that not much happened. Think back to how much we saw and learnt in Marvel GI Joe #1. This was okay, but it was no Lady Doomsday.