Gameplay is great, I agree with Mirson, aiming with the right analog stick feels weird but its a minor flaw that I could easily ignore. Who knows? Maybe the full game will allow you to switch control pattern.
The voice acting is surprising good, though the first thing I did was try to switch the voice to Jap (only to find out the option is not availible on the demo!)
The assult troops really owns in the early game, I pretty much use Brigitte to clear out the entire enemy infantry line with Welkin and Largo to take out the tank.
The demo was 'too easy' but considering the unique nature of this game I assume the easy learning curve is to help people get use to the control, we've already seen review and comment from agent that it gets much more difficult later on so I'm not worried.
I was really cockeye with the tank, and pretty much stopped using it once the enemy tank died.
I didn't really needed any assurance, so this demo is more a treat. I hope this game becomes a huge success for Sega because I'll be hungry for a sequal for sure!