Maybe too much Lovecraft, horror channel, or Slayer, but there's an element of "born of dead womb". Certainly nice for the transplant recipient and partner, but I think I'd feel a bit weird having groen in a transplanted womb, even with downvotes telling me I'm not allowed to have an opinion.
Shouldn't you feel the same way if your mother had a heart, kidney, or liver transplant? You'd be directly hooked up to it as a fetus and it's as "dead" as the womb in this case.