The TPC Scottsdale Stadium and Champions courses are way over rated! The Champions course is nothing more than a hacked up muni. In 2011 the greens have about 60% coverage of grass, the rest is dirt painted green! They roll at about a 7 on the stimp meter (very slow and rough). The Stadium course greens are much nicer.
One of my other chief complaints about these courses is that year around you will have balls plugging and balls with mud on them. They over water the courses to try and keep them green (still lots of dried out brown spots though). There is no sand base under the turf so you get lots of wet/muddy spots. They do dry out the Stadium course just before the PGA plays there, but the rest of the year both courses are wet.
Net, net: Stadium is an overpriced tourist trap and Champions is a modestly priced, slow playing, beer drinkers muni.