Sound, callouts and theme can make or break a game. Shrek is pretty unbearable with the sound on, turn the sound off and put on some of your own music on and it's fun again. Theme has given tremendous on-location lasting power to otherwise unremarkable pins like BttF and DE star wars.
It's an alternative to the 60% comic book movies, 30% washed-up bands themes from Stern, but such a cheery theme will take some getting used to and some people will probably never get over it. Some like bitter drinks, some like them fruity. Like every other jerk on pinside, I want to know what title JJP is doing next.