I haven't yet played the game, but have read the rules and the cards. I must admit, I have never played RPGs so can't really assess how it compares to others. But it certainly looks intriguing.
The back story is intriguing and well written. The date is left vague - it is most likely the late 1910s but could easily be any time up to the present. Could this be something the players agree on beforehand, or should it evolve naturally out of the narrative?
The rules seem clear and are beautifully laid out. Well done on that. Likewise the cards are clear and pretty. My only suggestions would be to centre the card text vertically in the boxes, and provide an optional card back sheet. Some cutting guides and a bit of bleed around the cards would also make them even more professional.
Without playing, it is impossible to know how the stories might pan out, but it seems you have a range of cool stuff in there, including knowledge hidden from the other player. It seems like the return travel could be a bit anticlimactic if there's no combat. And I wonder if there could be some sort of surprise revelation once you return to base as a sort of ending for the story.
Overall, I'm impressed and hope I can convince one of my sons to try it out with me.