My first bike ever I got when I was about 13-14. It was an '82 XL100S. Mmmmm, what fun I had on that machine. I don't think I ever changed the oil, I don't think I ever tightened the bolts, no maintainence at all, etc. I just turned the kick, kicked it, and rode off.
If the bigger XL's are anything like the 100 I had, they're great little bikes. For $500, can't go wrong there.