The most fun you can have on two wheels. It's superior handling and suspension combined with it's overall low weight makes it an extremely enjoyable to ride, especially through all the twisties and turns. Can easily beat most 1000cc crotch rockets through local backroads.
I just installed an FRC 39 kit and took my DR-Z 400 SM on a ride today, it felt almost illegal.
"Hey, wanna go see the new movie?"
"Hmm...I don't know... what's it about?"
"I don't really know, but there are Dr Pepper and zombies."
"Heck yes. Let's go."