I agree with the above comments; the camera and lock on needs serious tweaking. There were slight improvements in Episode Duscae Version 2.0, though, so hopefully they will build upon it further in the final game.

And yes, those drop ships are annoying >.>

Other than that I thought the gameplay was quite fun. Sure, there is a lot of holding down square, but thats not all there is to it. There are three techniques available in the demo, and if you don't make use of them then you might find yourself in trouble. Low on health? There's a technique to absorb. Surrounded by enemies? There's a technique to deal sweeping AOE damage. There's also a dragoon jump technique but I found this the least useful in the demo, but I guess it's a good way of temporarily avoiding damage. When you consider that the final game will have more strategic techniques, magic etc then there is potential for a great battle system!