HUGE SPOILERS AHEAD
Let's see, Doctor's one true love, doesn't mind her using guns, his fate is inextricably tied to her, she's secretly the lost child of his two best friends, she's far more competent and knowledgeable than any other companion ever, even the Doctor at times, gets to make an emotionless Dalek to beg for mercy...She trips a good few Mary Sue alarms.
BUT, with every adventure we moving further back in her timeline and get to see how she got to be so badass and developed into being that way, so I find she gets less annoying as she goes on. Not that the her-centric episodes are any good yet, she's pretty much ran her course as far as interesting character stuff for now and needs some time to get forgotten and mysterious again before they bring her back out.
Let's see, Doctor's one true love, doesn't mind her using guns, his fate is inextricably tied to her, she's secretly the lost child of his two best friends, she's far more competent and knowledgeable than any other companion ever, even the Doctor at times, gets to make an emotionless Dalek to beg for mercy...She trips a good few Mary Sue alarms.
BUT, with every adventure we moving further back in her timeline and get to see how she got to be so badass and developed into being that way, so I find she gets less annoying as she goes on. Not that the her-centric episodes are any good yet, she's pretty much ran her course as far as interesting character stuff for now and needs some time to get forgotten and mysterious again before they bring her back out.