I really enjoyed this game. The only problem I have with the game, and likely it's one of those magical problems only I have, is starting about half way into the game I gradually had less and less control over Revan. For most of the game that was no real problem since I would just use Jolee Bindo as my main character and ignore Revan, except where I had to do Revan then I'd have to deal with my increasing inability to control him. In the final boss battle it was awful since I could control Revan only 20% of the time. Luckily I far saw this may be a problem so I maxed out the heavy armor and the skill that increases the hit points you heal when using med kits. Though even then I'd have to have Revan run to the other side of the room when his hit points reached half since getting him to go away from the boss was almost impossible, and he would never use any mid kits if the boss was close. By the time I got Revan to the other side of the room his hit points would be down to about 5%. only then would reven use med kits. The fight was very annoying. It was such that while he was fighting the final boss I could and did take my hand off the mouse and Revan would just keep fighting.
apart from the gradual loss to control Revan, I really enjoyed the rest of the game. I do agree with Jolee Bindo that certain force skills are not automatically dark side, it's the intent, not the skill. So if you use sith lightning to stun someone, short out their blaster, short out droids attacking you, I'd say those are not tapping into the dark side. Using it to torment and kill yes.