J-rad isn't cheesy at all, my buddy's name is J-rad, and he is actually pretty effin rad. i agree with mtnbiker66 up there, he had a good recommendation with Jiggyfly, so you might want to think about that one. cocaine is more of an advanced speed, more for the pros, lots of nuances you wouldn't be able to take advantage of or notice as a beginner. you should start off with basic speeds and get a feel for them, then work your way up.

either way, you got a free bike, which automatically makes it a great bike for you. enjoy it.