I have WOZ, Hobbit, Dialed In, and Pirates here since they came out. Still waiting on Willy Wonka.
Before you read any further remember I work for JJP, so please remember that.
WOZ - had light board failures upgraded to 7.5 volt, a few static lock ups after the change. Eventually swapped to 2.0 for my benefit for tech support. One broken state fair pop bumper bracket, one broken spinner. Red slipper came off of left flipper twice ( once a few days ago )
Hobbit - one broken pop bumper bracket. Adjust a couple pop up character things so they worked better. One LED board failure when drop target bank above it shorted it out.
Dialed In - subway opto popped out under theater. One broken trap door flap. Bios on motherboard got corrupted initially thought phone issue.
Pirates - One of first 20 games that had black pearl pivots that needed changing and mine got messed up more in shipping/ not games fault. A few broken flipper rubber rings.
And normal cleaning and new balls and rubber rings.
I've found them to be quite dependable in commercial use 80+ hours a week.
I expect the same from Willy Wonka.
LTG : )