First the film is in French, so if you speak french or don't mind reading subtitles it's a solid choice.
It's kind of a Jason Bourne / Extraction type film, but done in a more realistic manner. Magazines aren't always magically full, the bad guys don't die from one shot while the good guys get shot 5 times and keep fighting, and while the hero is heroic, he's not completely impervious to the bad guys like a lot of action movies portray heroes.
Alban Lenoir does a great job being a badass and doesn't ruin the movie trying to look cool or have some stupid catch phrase that makes it cheesy. I definitely would watch another movie where he's the hero.
The action is really great, the sets are good, and you can stay immersed in the story pretty easily. The story is good and has a couple twists, but there's a couple of predictable times as well which was a little disappointing.
The fight scenes and shootouts are really good, the close quarter fighting is stellar but some of the long range shooting is not as good as it could have been. Hero not having enough cover, the missed shots causing little explosions, etc...
Overall a really solid action movie that won't disappoint you, If it were in English (I don't mean dubbed), I think more people would be talking about it.