I've probably had 15 or so purchases and sales on here. I've dealt with quality ppl thus far, no issues. Key difference with azb vs something like ebay is that aside from deal feedback, you can also get a sense of the person you're dealing with by reading some of their posts (not necessarily sales related ones) and seeing how they interact with ppl in general. There are some folks on here I would probably avoid buying from, not necessarily because they've had any deals gone bad (ie all deal feedback may be positive) but rather because I just think they could be a pain to deal with (they rub me the wrong way). I have this flexibility when I shop in bricks and mortar stores (if I don't like the service or the sales person, I can shop somewhere else), so I really appreciate having it online as well.