Like someone said:
Frustrating? Sure!
Buggy? Of course!
Clunky UI? Guaranteed!
Ugliest NPCs you will ever see? Hell yeah!
Aliens with woices tham make you want to quit the game? Check!
Rudimentary documentation, mostly made by a fanbase? Here we go!
I stopped there. I tried. I asked for a refund. Sorry game, we were not meant to be together. Masochism is not my taste.
Seriously though, I played more than my fair share of hard and/or badly optimized games in the last 25 years, I played with idiotic UIs, I played with dumb control schemes.
I also played heaps of complex games. Mostly that, acctually, from deep RPGs to 4X to shooters to management sims. And those get bad UX all days of the week.
But this level of unplayability I did not encounter often. In this category, this game is a gem.
1st of all: keyboard and mouse are unplayable. Simply unplayable. Even when using Pause to select actions, which btw is dumb in this type of games, the UI does not work as intended.
The best example is not being to hit a single enemy in a combat mission, because there is no way to target them even when they are in front of you (normally, with the controller, I get a circle and dots.
But with the controller, you cans target only one enemy at a time, and changing target requires to circle between every targetable thing, with one single button.
Then there is the fact that even if there already is too much different buttons needed, some are useless due to bad thinking: Like to accelerate / decelerate, needs 3 different buttons on controller, and a number of them on keyboard. Selecting weapon groups, what does it do? Why 2 buttons for that, and so close to other functions.
And to nail the coffin, this could be a great game, if what is at the core of it was not so badly executed. It has incredibly exciting features (logistics being one of them), but lacks so much in the flight aspect of it, that I sadly had to ask for a refund.