I finally splurged and rented it from 3DBR this weekend, and....it looks pretty good, AFAICS.
Yes, the ghosting's pretty bad on the pop-outs, but I'm old enough to remember them looking even worse on the big screen. (I don't think I ever saw one pop out that ever actually worked on the big screen for that entire decade, outside of the theme-park movies.)
At least the dying real-estate agent's hand seemed to be coming "out" of the screen, although the floating seance ball was almost unrecognizable. Bob F kept saying that a popout-heavy 80's film wouldn't adjust to the parallax of Blu, and while I can't say he's right, I can't say it's perfect either.
As far as the film quality, I remember them looking like that too--A general fuzziness and darkness, and that's what's put me back in time to the 80's more than the actors, the clothes or teenage Meg Ryan. Just had to stop and realize the 3D movies now look better than they ever did on 80's projection equipment, and the clear depth on a movie made back when conversions didn't exist more than made up for it.