I have not played it, and I've only played the Star Wars FFG game with a similar rules mechanic once, full disclosure.
For me, the game evoked a strong Greek/Roman feel. Every time I made a roll, I felt like an ancient Seer, asking for a chicken so that I could cast the entrails to decide what the Fates had in store for me. And after an appropriately respectful period of time of trying to decipher the intention of the Fates, I would offer a prayer of thanks or gnash my teeth and wail as was most appropriate.
For example, I want to shoot the bad guy. Which dice do I roll? Is the moon out of orbit? Does the day end in "y"? Did I have more than 24g of Protein before 10am? Ok, 3 red dice, 2 gray, and a chartreuse. Rolling them, I got 2 squiggles, a starburst (not the edible kind), two Klingon Birds of Prey (TM), and a Turtle with extra legs. Did I hit?
GM Response: Well, you hit for extra effect, but have a major setback and a minor difficulty. I think that means you shoot the Stormtrooper in the head, but suffer a bout of explosive diarrhea the causes you to soil your armor and reduce its' effectiveness. Oh, and you are now at a disadvantage when trying to communicate with anyone, unless you roll better next time.
Not that I'm bitter. 🙂