The technical difficulty in my opinion is not extreme (like a perfect anti-Faro for example), may be you need some time to practice it but I think it is not too demanding to learn either. Let me say in order to do the first step of this technique there are a dozen of ways that I explain in the video, and some of them are dificult and others are easy.
May be to master it you will need days or weeks, it depends on your practice and skill, but I think it is not more difficult than other false shuffle techniques like Heinstein, Truffle or Hollinworth shuffles, for example. Hope you like it!