It’s brilliant.
Complex but not too much so, at breakneck pacing the internal paradoxes of time travel have seldom had such thrilling treatment. It’s all a bit depressing as well, with one wrong move ruining future generations, but it’s done in an enjoyable way. Dumping Jennifer, Marty’s beleaguered girlfriend and soon-to-be wife, in an alleyway (and then a porch) is a bit naughty, though. That’s not aged well.
As for it’s prediction of 2015, much of it was accurate, but I don’t recall hoverboards a decade ago. Even today, members of Edinburgh’s shrieking underclass community are still pounding it along pavements on pink scooters (stolen), with lifted cleaning goods from budget supermarket Aldi shoved down their tracksuit bottoms.
Wanderings and ... wonderings. 