It's one of his best performances I thought.
It does exactly what it says on the tin, it's an action/revenge/redemption movie and if you go into it thinking it's going to be Shakespeare then you have no one to blame but yourself.
Everything in the flim clicks together brilliantly and, wihtout wanting to ruin it for any potential viewers, you feel the same towards Dwayne's charachter all the way through the film, his highs, his lows, the helplessness, every single emotion is shared with the viewer.
The alternative ending which was shelved by the film team does indeed ruin the end of the film which leaves you wondering how everything works out rather than trying to tie up all the loose ends.
Fantastic film and every I know who's seen it has loved it (I don't know you so you don't count

)