Yes, I do agree with ariel that "IVF is very much a "luck" thing. You need a doctor who is understanding, caring and able to do the right job. A top notch IVF specialist does not really give you a higher chance to get pregnant."
Successful rate is really just a number game. Some clinic just discard patient with low chance of success and hence make their successful rate look good.
I think people sometime just believe too much on fertility treatment.
In fact, the most important criteria for successful pregnancy is (1) egg quality (2) sperm quality (3) uterus enviroment. Fertility doctor cannot really improve (1) and (2) that much. For 3, the implantation part, NO doctor in the world can have control of it.
I also think I doctor who give u the "suitable" treatment is more important.
I saw the top notch doctor that some of you mentioned before. Yes, may be he is knowlegable but I don't think he really propose me with the correct treatment. As he is so busy to entertain that many patient on the queue. He just give me "standard treatment". Which end up wasting my time and money. Since he has so many patient, he forget my case history unless i remind him. For another less famous doctor, he gave me a tailor treatment plan right from day one.
Yes latest technology will help. But it does not apply for all patient too. For instance, IVM, yes, it is a so-called new technolgy but if you are not suffering form Polycystic ovary Syndrome, it is of no use to you. So a doctor know more technology does not neccessary be beneficial for your particular case.
Doctor can help. But for fertility issue, it is really more matter of luck and chance. A doctor can maximize what you have but cannot create things that u dont have. For stimuation drugs, they can use different drugs but have no control on your responds. Some ppl have poor respond and produce not much more follicle, for those who have better respond who produce more folicle doesn't mean they will all carry egg and all get fertilized.
In short, a doctor who have heart and know who to treat is better than busy doctor who don't even remember your name and your history.
Also top notch doctor is expensive for a less famous doctor who charge less, you probably can have more trial attempt, which may even give you a better chance.