Evolving gives a 10% increase in stats (20% for second evolution) and an immediate 2 level boost. The stat boost should be communicated better, I'll make sure to do that at some point.
I agree with your idea about the Autodox, it could have a better interface. It was one of the last things added before the Demo Day, so not much time was spent on it.
Thanks for playing and giving the feedback, glad you enjoyed it!