Also, whilst CFC is a little more organised in their admin dept, I'd take Wazza's (and Charlotte's) level of dedication and care far superior (yes, it comes with a price tag, but when you fail with yet another trial & error "vanilla" IVF vs a premium care treatment where Waz throws absolutely everything to help you succeed, it'll all worth it in my eyes. Not to mention the emotional drain, stress and strain on your relationship.
If possible, I would strongly recommend your friend see Wazza instead. If it helps, Wazza/Charlotte got me a BFP on my first FET. It may have been fate, but the extreme tuning of my body with all the meds, vitamins, strict instructions for both myself and DH and testing to ensure all was tailored to my scenario immensely put me at ease which is also another big factor.
All Dr Ng prescribed was elevit! Enough said~