I'm at Create. I've had two cycles so far.
#1 was natural. I got one mature egg, one fertilised embryo and a BFP, although I sadly miscarried at 8 weeks.
#2 was what they call natural modified (low dose drugs from day 6) as it looked like my funky post-mc hormones were trying to grow more than one egg, so the clinic suggested giving it a helping hand. They got 4 eggs, 2 fertilised and I had a chem preg (faint BFP one day, BFN the next).
We're going for cycle 3 in August.
I am pretty happy with Create. I like the low pressure environment and the low drug approach. The staff are generally really nice. The only really black mark I would give then relates to egg collection. The environment is pretty rubbish (one tiny room with four tiny curtained cubicles where you can hear everything said to everyone else - a real issue for my husband when his contribution for the first IVF wasn't great). Also at our first egg collection, while I was still groggy from the drugs and my husband was worrying about me as I don't react well to being knocked out they tried to sell us in vitro maturation (they had collected one immature egg, which I wasn't expecting) and ICSI, neither of which had been brought up before and which would have added many hundreds of pounds to the bill. That made us both a bit
. Despite all that, for me, the positives outweigh the negatives, so we keep going back.
I've no experience of Hammersmith, but I am happy to answer any other Qs about Create.