Sam Mendes turn as director isn't failing. He's put that backstory into play brilliantly giving Bond, whether it be Craig or the much speculated Idris Elba, something to fight for and something more to be. The character has so much potential. These days people want to see flawed heroes so they know that heroes are people too.
If you aren't sure about going to see this film, do it anyway. You won't be sorry that you did.