For what its worth, you have made a vary fun, vary creepy monster. The problems with it are mechanical, not aesthetic. Once you fix them, everyone will love this.
Perhaps a contingency could come up where if it drains the PC's technology three times, it gets full and looses interest in the PC and drifts away. This way, while a tech wouldn't be able to effectively harm it, all a tech would need to do to come out no worse for wear is survive three rounds. Another solution is to take away its energy disables, and make them weak to one element and resistant to another.
Judging by what the document says, this thing drains you real fast, and has a pretty big appetite. Besides, Techs will probably be fine. Just gotta see those stats.