Wtf are you smoking? I get the nice guy shit from anyone whose ever come into contact with him. If he was shallow and cocky then why does he sign autographs for everyone after games? Why does he consider Lundqvist to be the best goalie in the NHL at the moment over himself? Dude jokes around with the media all the time, you're honestly the first person I've ever heard call Marty "shallow, cocky, douche, ect".
PS He's not a good goaltender, hes a legendary goaltender considered by many the greatest of all time. Just to clarify that. He could be cocky if he wanted and all those records would warrant it.