I watched this anime because a friend of mine said that it was very good and though i was a little put of at first by the look of the art and the fact that it seemed very unrealistic, i was pleasently suprised by the fantastically clever story.
Full of twists and turn's and great characters the story really gripped my interest and kept suprising me the entire way through, even when i thought there was nothing more they could do. I am a person who finds most story's easy to predict and yet i had no idea what was going to happen next while watching Code Geass.
It had moment's in which i laughed and some in which i nearly cried.
The main character Lelouch is really fantastic and very well written. He made you love him and hate him all at once. He reacts well with the others in the story and keeps you interested in him the entire way through the series.
This series is completely worth watching and will pleasently suprise you in many different ways.