i need to watch it again. on first viewing it was ok - good, definitely not great but that might change if i watch it again.
more sci-fi tech might have helped. also main-bad-guy-navi's head looked a bit weird to me. not sure why.
the last part of act three (as everyone says) was good although some decisions/events seemed a little contrived.
also letting something happen once is bad enough but having the exact same thing happen again might be asking too much from the audience.
i also found that this second film was missing some of the wonder and frivolity of the first film. in some ways it feels like a reboot, while not being a reboot.
like in back to the future, there are things added in to build out the character which were not at all present in the first film.
i.e. the "don't call me a coward" thread
more should have been made of the difficulties of mixed species living together. the limitations of being human.
"everything on pandora wants to kill you (especially humans)" said the toughest human in the first film ...
so far 5.5/10 possibly higher on rewatch.