I've been watching some batreps and campaign playthroughs lately and I've noticed a LOT of rules mistakes. Had I recorded my own initial attempts at this game, I would have been horribly embarrassed at how many mistakes we were making...
Basically, I had a lot of trouble with a perceived imbalance in the game, and then it became clear that this perception was due to incorrect play. Even a small mistake - compounded - can swing the game terribly in one side's favor or the other.
My advice to anyone getting frustrated with the game's balance is to read the instructions and FAQ again - carefully - trying to find where you're misunderstanding rules. You WILL find some things you're doing wrong and the game will seem more balanced after you do this...
Just my $.02 (from experience)