I won't go in to detail but I had previously had a lot of issues similar to those you've made reference to (eg I was advised to sue the hospital/NHS due to poor care, I chose not to but did submit a hefty complaint).
Anyway, the point is, Prof Edmunds was one of the v few people who understood what my concerns were because he listened to me and had the knowledge and experience to find the answers.
By the time I saw him, I had lost ALL faith and had seen 4 other Drs all of whom had attempted to minimise my issues. I ended up walking out of the fourth appointment (as the Dr was lying to me about the options available) and knocking on the Prof' door. I apologised for knocking/troubling him but explained what had happened. He asked the Dr what had happened and then v firmly told the Dr that he was wrong in terms of the advise given to me. He went through all of the options with both of us and then insisted that the Dr apologise to me. I was so relieved as had previously felt as if I was in some parallel universe, no one was listening to me and each Dr had insisted that a coil was the only answer to all of my problems!
So that was my intro to the Prof. He was the only person I trusted, he was the only person who made me feel safe and believe me, I received such poor treatment prior to seeing him that I was in the process of being treated for PTSD.
My GP specialises in gynae/womens health and she said that in terms of West London choices, the hospital was one of the best - that was her opinion, I don't know that for sure and had never used it for anything else but in terms of the Prof, I trusted him 100 percent. He is v calm, reassuring and never appears to be in a hurry.
I'm sorry you've had crap experiences and apologise my post is so flipping long - I rarely refer people to professionals that I've encountered but I honestly had no hesitation in mentioning the Prof.