Hi Racey,
I had no idea either, so just went with who the local GP referred which was WFC cause it was closest to home and work. The process was simple, I rang them and they gave me the name and contact of each of the Dr's who are they are aligned with. From there, they offered to book me into 2, but there was a 6 week wait, or i could ring any of the others and try and get a meeting earlier. I rang Dr M and got an appointment that weekend. The appointment was scary, and we doubted our choice. He was in a freaky old house in the back of Westmead which needed a good clean, and wasn't cheap for the weekend visit, but he just talked with us, checked our GP's referral, sent us both for bloods and me for an ultrasound, then once that was done we were told to ring the fertility centre and book in for a nurses interview. Of course, within 2 weeks all the BT's and Ultrasound were done and i had phoned the nurses. Another 3-4 weeks later we were in at WFC for the nurses interview. We were lucky, my period started 3 days later which meant the IVF cycle could begin. I am impatient and the 4-6 weeks to get all that done seemed to take forever, but now, the cycle is near completion and the 2ww is all that's left (after egg transfer 2morrow!). I have found WFC both easy and difficult. I have not seen Dr M since the initial referral stage, other than in the halls of the hospital, when he didn't recognise me! We have met probably 7 nurses throughout the process, all which have been great, but i have felt at times that i was on the journey alone because i just didn't know what questions to ask - so was relying on the internet for most things! I do recommend them though. My EPU was yesterday and it was so smooth and relatively painless. I was unwell with one of the fert drugs, but that would have happened no matter where we went for treatment, and as a bonus, the WFC is about to move into new premises with the upgrade of the hospital, so you will be in a great environment for your first cycle.
Hope this has helped with the difficult decision making, good luck!