Is this certification worth it?
MovNat actually recommends it as a prerequisite for their certification.
yes, it's great. simple yet complex/difficult. requires lots of practice in small increments, regression/progression, figuring out what you are doing "wrong" and so it's nearly impossible to correct yourself well. basically you may be able to self-diagnose to a point i.e. my pelvis is unstable, etc, but telling HOW it is unstable and what techniques to heal it essentially require an expert... and there are not that many experts. some of the best are the most vocal: brett jones, charlie weingroff, perry nickelston, gray himself... but their services and even the services of less vocal experts are hard to find, hard to afford, etc.
certification would be great if you can afford it and are able to practice it well continually, which requires a really robust infrastructure of support...