teSeems like the discussion got distracted by childish comments, like most threads on cgtalk.com.
Here’s the scoop on the Shake bundle - they’re good if you are a total beginner, but not that great. But they are still better than the first 3 DVDs that CMI did (can’t comment on the DVDs they added lately). The Shake 101 DVD is worthless - the guy is just reading what’s displayed on the GUI and mostly making common sense statements. VFX Compositing Fundamentals covers the same ground a lot better, although some of the statements (esp related to the math portion) are fuzzy. Also, some of the advice - e.g. convert log images to lin, may make your life easier, but will cost you - in the case of log-lin you’ll lose a lot of the dynamic range by doing everything in lin. So in general the impression that I got is that while the instructors have a decent amount of experience with Shake, they are not masters who completely understand the math underneath the nodes. They probably learned on the job, but still have gaps because noone taught them the theory in detail.
My advice - read Steve Wright’s ‘Digital Compositing for Film and Video’ and try everything in Shake and you’ll be head and shoulders above 99% of the folks who use Shake. Use the Shake manual and Gnomon’s DVDs when you get stuck with Steve Wright’s book and to learn the interface.
Nov 12 Update - After watching the Matt Linder DVDs as well I’d have to say that they are pretty good. On a scale of 1-5 (5 being best), I’d give Matt’s DVD’s 4.5/5.0. Shake 101 is 1.5/5.0, VFX Compositing Fundamentals - 3.5/5.0.