WOZ is a beautiful game, that has a few problems.
-It is rather stop/start, with lots of video clips/animations and relatively little ball flow (at least in the setups I've played). The animations are incredible the first few times, then you get bored.
-It is very difficult for new players to figure out what they are supposed to do. It's lighting schematic is so different from B/W and Stern games, that simply understanding where to shoot can be tough. "Shoot the flashing light" doesn't really work here.
-"There's No Place Like Home" is nearly impossible. Though it's a bonus ball-save that SHOULD be tough, so I'll let 'em have that.
-The LED lighting can be blinding, making it very difficult to track the ball.
That being said, it's got some things going for it:
-Somebody is trying something new! Hopefully will breathe life into the whole industry when it comes to innovation.
-Build quality and commitment to jamming the system with "cool stuff" is second to none, especially as Pro-level Stern games become increasingly sparse.
-Theme integration is pretty top-notch. And the theme is a classic.