I waited to see the full set before putting in my pre-order and will be doing that soon. I really like the set. I'm not a Clone or Mandalorian nut but I really dig this set. I can see people's arguments on the black troopers but if I understand it correctly, Omega Squad is from a book/comic and that's how they are depicted? Unlike the Utapau Shadow Clone or the Shadow Scout which were just made up, these actually have an EU story.
I've seen some grumbling about the head sculpts on the Mando figures and agree to a certain point. I don't care where they came up with the sculpts (Hasbro employees or whatever) or the names, but they should have at least made them tough looking. Toss in a scar here and there, a little brooding look and the right paint app and it would really take them up a notch.
As far as the RC figures go, I'd love to see a new Republic Commando sculpt some day. It's not that bad, but I hate the legs. I finally got the Delta Squad pack and it's a cool set and I'll be looking forward to these as well.