Those are good numbers, yes, especially the AMH. How old is the donor? At 36, my AMH was 4.5 and my AFC was 22, they retrieved exactly 22 eggs with 19 mature. I have generally found AFC to be the most useful number in predicting eggs retrieved (for me, at least). Of course I'm assuming your donor is much younger and if so, most of those eggs will be more likely to lead to healthy embryos.