This is the method that I have found for rooting the Sprint version.
[SM-N900*] CF-Auto-Root - xda-developers
I have not tried it yet. viperboy at XDA confirmed that he did it.
xda-developers - View Single Post - [SM-N900*] CF-Auto-Root
I am having to return this phone for sound quality issues, though, to be fair, I do not know if it is a phone or carrier issue.
I am also waiting to see if the Knox counter issues are overcome and to see what kind of roms turn up and what feature improvements they might contain.