That's almost Gregorian chant like in execution. Very cool interpretation. Somehow though I feel they lost the penitent feelings the original and Cash versions have. They almost flipped to a Zen/meditative kinda song instead. Introspective but in a different way.
In my opinion it's significantly worse and only known because it's Johnny Cash. He's hardly singing and sounds bored half the time...compared to Trent reznor who sings passionately and varied. I'm not the biggest NIN fan but I think the original's instrumental part is way more musically interesting to me, too. To each their own of course but I'm always surprised to see how many people love this version