Except maybe Beyond Thunderdome - there's a lot of unnecessary exposition by Tina Turner at the beginning. Some is true for the feral children, althought their mythologizing of their past is at least interesting.
Ugh, yeeaah. Tina Turner has no reason to be in that movie. I keep trying to convince myself that it's a good movie but holding it up to Road Warrior, it just totally falls apart. It has so many awesome concepts and ambitions but is just executed so... weirdly. And not always weird in a good way.
It turns into a Mad Max movie for the last 15 minutes or so after they escape in the train, and there are some things like the idea of MasterBlaster that work really well, but the story is just too stationary for the most part. All the other Mad Max movies always have an incredible narrative drive behind them, either towards something or away from something.