Not the few times I have used it--it takes you to an escalator that leads to the last moving sidewalk before CityWalk (beyond the rotunda). You still have to walk another 100 yards or so to get to the theater, then thru CityWalk to the gate of either park.
IIRC, it was $16, but that was when general parking was still $8 or $9 (and it was HHN, so my memory is kind of fuzzy). I remember thinking it was kind of a rip-off.