Okay, now I've heard it pronounced I'm going to say that I don't think many English people will be able to pronounce that properly OP. I've sat here for five minutes trying and sound like I've either got a speech impediment or am doing a really piss taking impression of Ruth Madoc 
So if you live in England I wouldn't. It's a tongue twister! Agree that if you can say it and in a Welsh accent it's very nice though.