I found a few of the LS choices cheesy, unrealistic, and to display a lack of understanding of what the light side was (at least, what it was set up to be in the movies). I quickly lost connection with the mechanic because of this. Ditto with the dark side stuff. It's not very well done sometimes (though sometimes it is). The choice can be not meaningful enough, and then impenetrable i.e. you just did some thing bad and gained LS points, or both choices suck and it seems arbitrary which one is which.
In the end, the mechanic has revealed more about the moral ambiguity of the designers and writers than the world of SWTOR