WDYT? I've had a bad response on it before but I really do like it. Plus, I've always loved the nn Gwen and this is the only name which it could possibly come from that I actually like.
I don't like Gwendolen/yn and although I like Guinevere it just doesn't feel right for me. Also, just in case you're thinking the nn should be Gwin - I don't like Gwin either :P
I'm not Welsh but I've lived in Wales for 8-ish years now and I feel comfortable using it even if I were to live elsewhere, for those of you who are bothered by that sort of thing :P
All comments appreciated :) TY!