Definitely technical mentorship- especially in robotics. Also great career advice for people starting out in their career (in university for CS or graduating soon/just graduated, picking between entry level offers) up to 2 years into career. Or grad school advice.

Id be looking for web programming and business savvy skills.

Btw, Ive recently fell in-love with embedded systems. Ive built a dishwasher that sets your dinnertable. But the issue is the business, not the tech.