They are the real deal. I own 9 of their oud oils and a bottle of their Ambergris. I have smelled a few "pure" agarwood oils that are sold on Ebay and they don't even come close to the quality of Oriscent. They are in a class all their own. If i'm not mistaken, they offer doulble your money back if you find anything other than oud in their oils.
I think people who say they don't like oud after trying M7, the Montales or other oud oils should give Oriscent a try. I bet they just might change their minds.