Haven't undergone it myself but have talked to a friend who did some of the training courses.
It sounds to me just another repackaging of approaches such as structural integration (rolfing) and muscle energy techniques (muscle therapy that grew out of osteopathy). It has all been done before.
Are you a physio? If so I think you would be much better developing skills in truly science-based approaches to the diagnosis and management of movement and postural related musculoskeletal disorders. that way you don't get sucked into half baked therapies that you have to wade through what might be useful and what is rubbish. Plausibility is less of a problem and you might even be doing something that has evidence for it's effects, thereby increasing the likelihood of being more effective yourself - now that's a novel idea.