Nice video find Dana, that is a good introduction 101 for folks wanting to make sure they get started correctly with Audyssey. In my opinion, if run correctly, there really is no reason not to incorporate Audyssey if it is a feature of your AVR.
Unfortunately, Audyssey is sometimes compared or placed in the same category of other inferior setup calibration products on the market and said to be "error-prone". This is an opinion and there is always an opposite opinion. It does not make good speakers like Axiom sound worse, actually it is the opposite.