@infinity888 - ask .... it's why we're here! We went to Embryoland and the info we got about our donor was - age (29); height (163cm); eye colour (hazel); and the fact that she'd successfully donated before, as well as having a child of her own. The only thing that didn't match me physically was eye colour - I have blue/grey eyes - Dr Nikos was quite concerned, until he spoke to us - both DP and my mum have hazel eyes - and his relief was immediate .
Dr N does 5 day blastocyst transfers - the embryologist will come and talk to you prior to transfer, tell you about the embryos quality and give you picture/s. She (Constantina) will also let you know if/how many are available to freeze and discuss options if none are of freezing quality. We nearly had to leave a further sample from DP, but luckily 2 improved to freezing quality by the time I had my transfer.
I believe the law in Greece is for no more than 2 embryos to be transferred in a donor egg situation - you have to remember that these eggs are generally from much younger women and are of great quality - twins do happen. You get to decide if you want 1 or 2 transferred.
Hope this helps xx