[@LordofthePies] The Mech is what I like to call a "Boarding AI". It's an advanced Artificial Intelligence with its own set of programming, subprogramming, subroutines, etc. 

So, basically, you're a robot who can make its own decisions. With 0 charisma, it's unlikely that it will be very friendly, but at the same time, being an AI means your character will never beat around the bush. With anything. If something is a problem, a Mech will almost always be a good solution.