Some points to consider...
This is basically the same game (as Nemesis) with new models for the same units, plus the ability to control two new battle units. I was expecting a larger overhaul than that. You've tried to shake it up by having all-in-one mobile base unit aka. warmachine, but I think it made the game feel emptier. There is no territory to defend, no buildings to capture, if the enemy comes you can just uproot everything and go.
This was somewhat compensated by better-designed levels. More levels involving dumping lots of units from both sides together at the start, so you enjoy large scale battles right off the bat. Well done to that but....while I appreciate how hard it must be to code AI, but it often does the most ridiculous things, like throwing condor bombers non-stop into my wall of raptors, or battlecruisers circling around hitting nothing while I get free shots from my own ships, etc etc. If you can give the AI a major improvement, (and, imo, revert to the traditional bases and to-be-captured buildings), this game is golden.
And what's up with the desperately-trying-to-be-funny characters? It gets old quick. It was bearable in Nemesis, but you've overdone it here.