Okay, just skimmed the rules, and I REALLY like what I'm reading. Those mechanics seem solid, at least at first glance.
I like the added complexity of to hit modifiers, I like the way CC is handled, I like that powerful weapons are back to a save modifier instead of a flat "ignores all armor worse than x". Seems very old school, in a good way!
EDIT: just read how they handle Terminator armour. 3+ save, but you roll 2D6 and add them together. So against a weapon with no save modifier you'd need to double 1 to not save - love it! Makes it really stand out, as it should.