Well, the one i like is the possibility to have as many screens as u want, not limited like with Launcher Pro or something...
App Drawer can have customized backgrounds unlike Launcher Pro and u can choose direction in which apps will scroll when u swipe, not just up/down, but left/right
Besides swiping left or right with screens, u have Swipe-Up or Down actions which u can set to your preference, like if u swipe up u can set it to run a specific task or app, your choice
And one more interesting feature is u can set a custom font
Which is my favorite.
And its skinnable, so u can have custom themes for it
U can save/load your configuration of the launcher so u can just import it from sdcard if u re-flash your phone. No need to set everything manually again...
It has a recent tab which shows most recent apps u runned, and it also has a tab which shows current running apps, so u can manually kill any app that u don't want to be running.
Its a pretty much a good launcher, it works really fast, animations are smooth and if u like some of the above features, i'm sure u will be using this launcher