I've ordered from them many times over the past 6 years and I've never had a problem. I've had 2 times where the wrong oil was sent, but they replaced it promptly without any rudeness or anything. They were actually quite pleasant. I've never received any rancid or "bad" oils from there.
In the article, the guy doesn't really seem to know what he's talking about when it comes to oils, so right there's a big problem on his end. The place he goes on to suggest to order oils from is pretty pricey. (Perfumers Apprentice)
Also, a lot of the people commenting are people saying what bad service they've had and then give a link to their oil business, so they're just trying to get business.
Some of the people are saying things like, "I've shopped at Camden Grey for years and every time my order gets messed up." Umm...then why do you keep going back?!
I usually only go by reviews on soap making forums that I am a member of, because the people are more likely to know what they're talking about and aren't profiting in any way by telling you to shop somewhere else.
I'm not saying that all these people are lying, but sometimes I think some people just comment on blogs and other places just to comment.