It would be useful, though, to have some concrete info about the concepts behind that brick, about each slider in it, and how they interact with one another and the editing tools. It is hard to imagine that would disclose any secret sauce!
It would be extremely useful. Apple has shown no inclination to let users know what algorithms are being used to make any Aperture adjustments. I don't see that changing.
I regularly lower Boost (a contrast setting) and also lower Hue Boost (a hue contrast setting dependent, afaik, on the Boost setting) -- but I'm ever in search of naturalism, and find easy theatricality degrades my pictures.
I suspect -- I won't take the time to test this out -- that with Aperture 3.3.1, all of the default RAW conversion settings have been "pimped" a bit. This is misleading -- RAW should be a somewhat neutral, somewhat flat starting point -- but I suspect the engineers are under orders to make converted RAW files look like Disneyfied JPGs, because Disneyfied JPGs sell cameras and software ("Wow! Lookit that straight-out-o-camera image!") In the future we may end up with "RAW RAW" and "Cooked RAW".