Lacking congruency and story

Rating: 6/10 (18 May 2015)

I had high expectations for this movie - seen Mad Max with Gibson just a few years back the first time and really enjoyed it. He was the main character however in this latest blockbuster, he is just a sidekick to Furiosa.
This wouldn't be the worst part, what really bothered me were the following things:
Inconsistent sound (e.g. low volume during the high actions scenes) but that could've been just by the setup in my particular theater.
Special effects were great, lots of practical effects and explosions but it was very obvious and it made it seem less real and plausible because of speeding the action up in post production. I get it, you can't really do certain scenes in 100km/h in sand having the main character strapped to the front of the car but it ruined the realism and CGI would probably look better and more believable.
Backstory - none. I did care very little about any of the characters though we learned about Furiosa and why she was doing what she was doing. As someone else mentioned, Michael Bay's movies have lot more story than this one and this one is praised and his movies are heavily criticized.
Max - inconsistent character. In the apocalyptic world with no rules and him being a master of his own life, not belonging to any gang/group - why he didn't kill the guy that used him as a 'blood bag'? Why he left him live even after getting them repeatedly into trouble? That seemed very incongruent with his character and name for that matter.
It was good fun nonetheless but current rating of 8.8 is highly overrated and I'm certain it'll go down as more people see it.