I found Craig's tips very helpful when I started out with the Console Emulator. There was a thread when they first appeared where he went into great detail about his experiments ith it.
I have taken Craig's starting point of "2" and then experimented with tracks. Now I have a better idea where to start on differing material.
The other great advice Craig gave was to insert the Console Emulators before you start mixing, and mix "into them". Also play around with the different emulations, and see which work better on different program material.
It is a gross oversimplification, but I seem to prefer the N-type on rock-ier material, the S-type when I want it to be more transparent (Jazz, classical) and the A-type on pop/funk. Having said that, there are probably as many exceptions for me as there are rules on this. The A-type can sound nice on lots of things etc. etc..