Fist I'd like to say that this is the best Move/Rifle integration I have ever seen in a shooter so far. The calibration was easy and the aim was accurate. Unlike Killzone, if you move the controller outside of the screen area it pops right back perfectly.
That being said, I thought the plot was weak and found the graphics to be simplistic. The sound was helpful. All in all I gave up before finishing the campaign and didn't even bother trying the Pirates.