Yes, there are lessons to be learned every single time. But don't think just because a direct opener proved to be successful for one particular guy with a particular girl, it's gonna be a bullet-proof technique.
I tell you this cause I live in a country where things are very very different than in the U.S.A... while I can still take of advantage of things like negs, DHV's, etc, I often need to focus more on the girl herself, what's her lifestyle like, and go from there. And that, you can't learn in any book
