The light side isn't too bad now (some things were changed recently iirc). It's possible with relative ease if you know the timings/steps perfectly.
The dark side, well, shit. With 4 lirangshan mist uses, half a day desyncronizing light talisman and dark talisman stages, and timing everything perfectly, and a ton of luck, I did manage to see most of the dark side ending. There is no honours and the reward is crap as it turns out.