Went to this again last night, and its even better the second time.
This time I got to appreciate the sound. The sound of his bike, his gun (before shitty silencer mode) and the bassy music. The cinema was fuller this time, which is a good sign. Word of mouth getting around.
New favourite bit:
When he throws the gas grenade up the stairs, then walks up and starts killing everyone. The rest of the cinema seemed to think he was gonna arrest them, and started cracking up laughing when he started brutally shooting them. Shit was awesome.
The only thing this movie really lacks is full frontal nude shots of Karl Urban.