Bad One: Gets pissed off easily when something doesn't work, focuses on himself, doesn't like when people go on leaves while he himself enjoys vacation twice a year, discriminates, uses trickery to get things done, uses his ego in product decision making in case of a technical debate, not at all honest
Good one: Rarely looses his cool, may not write code but brilliant with products and product architecture overall, defeats you in technical debates using intelligence rather than his command and ego, is honest & loyal with you and so are you, is a boss but works with you like a team
When I started out I remember once I was staying late to the office coz I had some pending work, my manager stayed with me because he had good understanding of the problem and he dropped me off(I used to travel using companies transport) even though he had to take detour. Best product manager ever!