Basically a non-stop action flick that had the potential to be so much more, but didn't bother trying.
Various aspects of the background and setting established room for a lot of intrigue and mystery. There are various races and caste-like social levels with complex politics and rebellions, unexplained AI tools, powerful military machines, and serious moral and ethical dilemmas. Yet these are all subsidiary to the action and never explored.
The action is interesting enough, and there are historical reflection scenes that help pacing by allowing for an occasionally slower pace and a bit of character development. Unfortunately, that's pretty much limited to getting a bunch of selfish idiots to work as a team. Their individual characters aren't explored, and the two that get the most lines are the most annoying: one stereotypically silly and boisterous; the other constantly whining and selfish from start to finish.
It's also not very consistent internally. For example, early on the 'heroes' are fighting against tech that was effectively stolen from their own military. Yet, despite their specialist training they seem to have never seen nor heard of any of that tech before. They even have an AI assistant that can control some tech, but have no idea that it can.
The worst part is the ethics of the whole thing; but that's getting into spoiler territory.
Watchable, even entertaining, if you can ignore the whining. But don't expect much in plot or character dev.