I pretty much felt the same way, but I played it twice more and it doesnt seem so bad anymore, its not KotOR and it doesnt have a great ending cinematic (or much of one at all) The story is there, you just have to squeeze it out of you're companions.
And (not to turn you're threat into a KIII thread but..) perhaps OE purposely left the storyline somewhat vague leaving ample room for KotOR III.
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Yea, but it's starting to feel like Halo 2 ALL OVER AGAIN....
But, after the dust settles and if I am bored enough, I'll go through it on DS.