Re: the donor egg issue.
Some of you will know that donor embryo's were my plan B if our last cycle didn't work out. My FS thought DH had some sperm DNA issues arising from previous medical treatment so we looked into Donor embryo's rather than eggs. When I was researching I found a great online group that used one clinic. Some included pictures of their donor embryo bubs that floored me. I could not believe how alike these babies were to their non genetic mothers. I am a total believer in the epigenetic thing now.
I am probably a good advertisement for donor eggs if it comes to that. My OE journey has resulted in no embies good enough to do PGD testing. A twin pregnancy where we were given a 1:2 chance of trisomy 21... both turned out to be ok but one still didn't make it.
I don't know about the bonding issue though. It is a personal thing and I admit that I feel a strong bond with my OE bub that I don't know would be the same with a DE.