I love the game. I have owned and played almost every game in the top 50 and if I could keep only one, it would be WOZ.
The number of used machines being sold and the price of the ones for sale is an indicator of how good of a game is. Not many for sale and the price is holding. If it were as bad as some of the I played it once and did not know what to shoot for or what to do with the upper flipper, the price would be crashing and you would see games for sale.
I think the haters are comprised of people with testosterone issues and ones who prefer simple games that the brain is barely used. One in particular thinks Monster Bash is the greatest game ever. Lets see...ramp, ramp, ramp and outlane, outlane, outlane over and over again. Don't get me wrong, Monster Bash is great if you never played pinball much or don't like to think about what to do.
Variety is great and Woz is not like many other pins.