Fantastic watch, will watch again, and do recommend.
This is one of the best, if weirdly refreshing movies I've seen in quite some time. I'm a sucker for a good survival movie, and this is an "elites hunt people for sport" trope mixed with a good mystery plot if there ever was one. The story structure alone is worth the watch as it essentially runs 3 (-4) sequential stories to tell one overall story while telling you about the story structure. Some movies clearly put a lot of effort into keeping you on your toes, this movie just does it.
Not only is the gunfighting immaculate, but the combat action sequences are amazing. Betty Gilpin steals the show every time she's on screen, and I would normally say she's the one that carries the movie, but the movie is good enough that even though she's over the top great, I can't say the movie needs her to carry it.
There is an investigative aspect of the movie that is very intriguing, but that is given in the "why are they doing this to us" of it all, but unless the villains give an "evil speech", then it should be expected.
If you enjoy human vs human survival situations, then I think you will be pleasantly surprised by this one.