MB is awesome - but you have to make sure to set up the difficulty appropriate for the players.
If you're a good player...
- open up the outlanes
- make it steep
- keep the flippers strong
- bouncy rubber
- sensitive slingshots
I know multiple top players that love MB, and have it setup hard enough that nobody would say it's too easy.
I've also seen plenty of MB's in poor shape and/or setup too easy - too easy isn't fun.