The Positive: It looks amazing, and in the right hands — at EXACTLY the right angle (or on camera) —
it looks like real-life CGI. Also, you're getting more out of this than what you'll pay for it. He
teaches at least three separate moves/principles.
The Negative: Realistically, most people
would have a hard time getting comfortable with this, because it is highly angle-sensitive, and the
moves are very knacky. This is the kind of thing that you can only perform for 1-5 people who are
all directly in front of you — and even then, if you miscalculate or "stray from the path" by even a
millimeter, what might have looked like a total miracle will instead look painfully stupid.
If you're the type who isn't afraid of performing bold, angle-sensitive sleight of hand that
requires considerable practice, then the effect is absolutely worth it in this case. Performed
correctly, it really does look exactly like you see it in the preview clip.