There are many stories of success and few records of failure. GWA isn't a failure, either. Reawakenings occur in odd fashion, with no linear progress. It's like peeling the layers of an onion. At some point, the outer skin is shed. At another, you get to the sweeter meat. It can vary with each onion, but doesn't make the peeling any more or less effective.
If you have a lot of the bacteria to kill, or you have an unknown co-infection, the effectiveness of the treatment may not be readily apparent. Some of us just won't know til we pass the 'tipping point' of bacterial kill, or discover the unknown co-infectious agent. This is a treatment in its infancy and no one knows all the variables yet.
Oddly enough, just this week on another forum, there is a post of someone (wheelchair bound) doing this regimen 'on faith', as it didn't seem to be working much at all. Well, surprise; now it's 'working'. Over two years on abx, with really aggressive flagyl pulses (nearly forty of them) and a couple of weeks ago, suddenly a command from the brain to move the big toe actually MOVED the big toe. Now, other improvements are coming, including being able to lock the knees and stand again.
There's a lot of disease to kill for some people and for some people the results come slowly, imperceptibly. The longer this thing has had a chance to grow and flourish inside you, the more deeply ingrained it would likely be. Makes sense. Therefore, the longer it will take to kill it all off and also to redevelop new pathways and retrain muscles. I'm still retraining one simple but vexing movement, trying to make good quality clockwise and counterclockwise circles with my feet. That's after two and a half years on abx and feeling I'm 95 to 98% recovered.
I've seen a rule of thumb that recommends one year of antibiotic protocol for every ten years you've been infected with cpn bacteria. I wish I could cite the original source, but it was repeated a few months back by one of the members here. Dr. Stratton is now recommending a standard of three to five years of treatment. What we really need most is a pill that confers patience, extraordinary patience, to get us all through this.