While this game is definitely dated, it's one of those few classics that's really worth playing even now. It's a DOOM-esque FPS with a bit of Puzzle/Platformer thrown in. The narrative is minimal, though it accomplishes what it needs to. It's probably noteable that this isn't really a "The fate of the galaxy rests on your shoulders!" story, rather you're a mercenary doing generally small-scale infiltration missions.
The map design seemed a bit confusing to me at first, but you get used to it. I was flying through the final few missions and still collecting most of the secrets along the way.
It's pretty short, but each mission is unique while being both challenging and fun. It's worth playing at least for a little bit to recognize the roots of the Jedi Knight series and some obvious inspirations for Shadows of the Empire.