Why is everyone always down on Expose?

This is just a commentary, that I've been avoiding posting about for a while, but since it's a slow news day I thought I'd share. I've noticed that a lot of people in the comments to posts seem to note that they hardly ever use Expose. Why not? It is perhaps one of my favorite OS X features since its release with Panther. All I have to do is mouse to the bottom left corner of my screen to show all open windows, mouse to the bottom right to move them all out of the way and peak at my desktop, and mouse to the top left to see all the windows of the foremost app. All of this is definable through the Expose control panel in System Preferences. Do you hate / love Expose? Anyone out there feel indifferent?