Hi, Almac. I've been thru two different types of pelvic floor therapy for pelvic floor dysfunction. Both offered helpful tips and techniques which did moderately help my situation, but unfortunately was not enough to cure my issues before infection, abscesses, and fistulae decided to join the party. (These things were not caused by the therapy, just happened to occur close in time). I, too, am ready to ditch the pouch and have begun discussions with a surgeon.
It was my experience that I got out of PF therapy just what I put into it. It is very time consuming with lots of "homework", requiring lots of patience and persistence. I was beginning to see good results and was hopeful this was the "cure" I had been searching for years. (Initially, I was quite sceptical and thought it would be a waste of time, too). I can't help but wonder if it would have been successful given enough time, but the other complications arose and ended all hope of life without an ostomy.
I'm not sure if you will find this helpful, but at least you know there are others who walk similar paths. Good luck with your decision!