Watchable but still a bit naff.
J-lo isn't too bad but she is overshadowed by a SMITH...a CGI robot and almost anyone else.
Effects are great and pretty well done but the story is just sooooooo bad.
It is utter garbage. We're led to believe a rogue AI terrorist caused a worldwide human-bot war that necessitated the formulation of an international council of nations to combat the huge threat but later find out that the worldwide death toll is just 3m. That's 0.03% of today's population and he's done the world a favour by creating world peace and a stable council...populated, led and headed only by by Americans of course.
Anyway, the bad robot escaped to another world saying "I'll be back" and 28 years later his whereabouts are micaculously discovered by J-lo as everyone else in the world is stupid and incompetent.
So off we go to get him. The world we find, is protected by a huge, impenetrable forcefield, FTL travel seems commonplace, no-one seems at all surprised to find another inhabitable, if somewhat inhospitable world so presumably there are loads around and spaceships are plentiful so the ICN, who have a butt load of huge space warships and giant space mechs send a single ship with a few space mech-marines to this hitherto unknown but somehow atmospherically mapped planet which holds the only threat the world appears to have to combat AI robot terrorist and his army of repeat villains.
Of course all the trained mech marines die instantly but J-lo survives somehow and after a lot of shallow soul searching mind bonds with her mech to become a uber mech but hang on, all the others were already mind bonded super experienced uber mechs with highly developed tactical skills and died straight away but we ignore that bit.
Anyway, being the only clever person on Earth J-lo overcomes all the obstacles to find the bad bots city and armed with self righteousness and thick, thick plot armour kills the army of bad AI bots that turn oit to be a bit shite, pretty stupid and tactically inept until there is only the top terror bot left to have a one on one punch up with.
Of course J-lo wins by doing stuff the big bad end bot wouldn't expect, which turns out to be pulling him towards her...as if that was some kind of ever so clever plan and then pulling his arm off or something, I don't know as I was scrolling through facebook by then but yay J-lo...you killed the bad guy and just in time as seconds later a butt load more mech bots reinforcements arrive from Earth leading to the obvious question why they weren't just sent to start with, or some kind of reconnaissance done like anyone with half a brain would do but I guess that's because everyone but J-lo is stupid.