I'm seriously thinking about buying this game

what's the long term gameplay like ?

It's a sweet game on Xbox, I am sure the graphics are the same if not better on the PC. As for replay value, it's pretty good. Lots of hidden items, and references to Simpsons episodes.

If you're a fan of the show, you'll love it.

I agree... If your a fan of the Simpsons this is a must have.

Easily the best Simpson's video game in years.