Giraffez - LB is well known as a celebrity specialist, but it's for a reason....she is good! She tries things other specialists don't and takes on the tough cases. That said, she is expensive (because she can be), and hard to get into. Her appointments are quick and I would say she doesn't have a great bedside manner (if you are looking for someone who is warm and fuzzy, she is not your lady!), but she really knows her stuff.
That said, if you are just starting out with IVF, then I think Primary is great.....if you are having no success with them and feel they aren't flexible enough, then it's time to look at someone like LB who will 'think outside the box'......but it is going to cost big $$$$. We only started with her as Primary wasn't in Melbourne then and she was the first FS that was recommended (and it was before she got Sonia Kreuger pregnant so she wasn't as hard to get into!)