It's no definitive masterpiece but it's damn close.

It's fun, it's light, [but] it has a hard time when its tries to get heavy.

The film never slows down or bores, plunging from one harrowing sequence to the next.

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.