fascinating character 
 driven to the point of fanaticism, ambitious risk taker, visionary thinker 
 emotionally disengaged, appears abusive to staff, controlling (one staff member complaining he didn't have time to get glasses repaired finds he has been booked in for laser eye surgery), lacking in empathy or loyalty 
 feel the subject matter is let down by the author, borders on encomium. Faults are presented but glossed over - not explored in detail, missed opportunities to delve into psychology of Musk, too much comes across as hyped press release or fanboy repetition of technical details without critical analysis.