I've had a few zooms. The 9002, a PS-02, a 505 built into a little Fernandes Nomad guitar, and the FX built into the MRS-8 multitracker. None of the FX were great; serviceable sounds for the money and era, and they were secondary to the main reason I bought the units.
BUT. None of the harmonizers were "intelligent", so this is obviously a new chip. And that sound bite sounds pretty good - as good as my Boss VF-1 multieffect's harmonizer, anyway (though I still think the old Digitech edges it out). It's hard to tell with all the FX loaded on that patch, though.