It's a shooters game I feel. To do well in the modes you have to hit the specific shots. It flows much better than TZ. It seems easy as extra balls are easy to get on stock settings, but getting ALL the cities is VERY tough to do. It is easy to make any game difficult though by opening outlanes, limiting extra balls, making it steeper, rule changes, etc...
Multiball is tough because Red is the super jackpot and it is a hard shot.
Shots feel awesome to me and it has huge longevity with 18 city modes, multiballs, and other mini tasks like bridge outs, flying rocks, the wheel, bobs bunker, etc... I've had it for around 3 years and it's not going anywhere soon. And guests FLOCK to it. It's on par with WOZ for best guest pleasing game in my house.