I don't know if you can really "learn" the classic force in a video as short as this one. If you
consider this to be a mere introduction to the classic force intended for a beginner, then I would
say this is a good start. It lays out exactly what the classic force is, and explains the basic
mechanics of it.
What it doesn't explain is, why you'd want to use it. The obvious
short-coming is that it doesn't work 100% of the time. In fact, as you're learning it, it'll hardly
work at all. And it's one of the few techniques that you really can't practice by yourself. Even
using a partner is problematic, because all you'll end up learning is the timing specific to THAT
person. This requires real world practice, and you're going to need plenty of contingency plans to
cover all the times you miss.
My own personal bias is that there are other forces that are
deceptive enough that are 100% effective. Some will argue that this is the most deceptive, but look
at it this way: the spectator who recognizes a riffle force or a slip cut force, is the same
spectator who will recognize your attempt at a classic force and purposely screw you up by taking a
card he knows you're not trying to force. So who are we trying to fool with a classic force? My
belief is that this is strictly an ego move. Card guys love the difficulty and they love "putting
one over" on the spectator. If that's your thing, great. But don't think that it makes your
effects any better.