Quoted from system11:
I'd just be really worried about the playfield on JJP machines given some of the horror stories and photos. Haven't played either but I watched a fair bit of both and the trolls would annoy me very quickly on TH. WOZ looks great but I was completely turned off seeing the pop bumper wear some people suffered. Also really don't like the LCD screen, it's too much to look at.
Funny story but 5 days after I post the above I got to play a WOZ on location - it had lots of plays and a perfect playfield, even around the saucers/holes. I cancelled my Ghostbusters order and a WOZ will be arriving here in a couple of days. Loved it.
As for TH a lot of the videos online aren't very good and make the game look pretty bad. This video is by far the best that I've seen: