Like @viridian I've never had a bad experience with craigslist. The worse it gets is those folks who insist on meeting in a supermarket parking lot, which is really annoying because you can't test the gear. But then again that lets you make a significantly lower offer on the item because, well, you can't test it.
From what I've heard though, the craigslist experience varies greatly from region to region. Around here it's pretty great, but one time I sold a truck to a guy who had just moved to town who, as soon as we were done, started gushing about how pleased he was with the transaction and what a great seller I was... To me it had been a pretty normal transaction, definitely nothing special, so I asked what do you mean, and he explained that in NJ craigslist is unsafe, you never go alone to a meetup if you carry cash, etc. Which explained to two guys he'd brought along I guess š
Occasionally you'll see some pretty high end components on local craigslist, up to $10K or so sometimes.