I have WOZ and Dialed In, I only have room for 2 games so I wanted two different types of gameplay. I had a TSPP next to WOZ for a while, but realized many aspects of these 2 games are carbon copies of each other, so I let TSPP go and went with Dialed In.
Dialed In commands for playing with flow, you can't really stop the ball and think of your next move, it all works out because of the flow, and once you get a good control of each shot, it becomes the most amazing game I've ever played. it's IMO the biggest difference with WOZ, a more stop and go game that takes some thinking about your next move, getting the horses first, starting a crystal ball or loading the Rainbow target to have a munckhin mode ready before starting a multiball.
Theme wise, obviously you can't beat the memorable Wizard of Oz, but it's my graal theme, that being said DI works great as an original theme, it's well put, the characters are fun, the light and sound show is terrific, it's a great game.
Overall, I play DI way more than WOZ, DI has shorter plays, I can spend an hour straight on WOZ, never that long on DI, it's a great shooter, with tons of modes, the quantum theater is an extraordinary toy, and the magnets everywhere add some great fun all over especially during multiballs. To me DI is the most under rated pinball by far, it's a fantastic game, and that flow, ummmm you can't beat that flow.