I think when you are contemplating any name for an infant, you should consider how that name might sound on a grownup. If Arwen grows up to be a lawyer, will her name be a source of shame to her? Not that I think Arwen is a bad name, but kids sometimes grow up to be very different than what we imagine for them. I'm just counselling forethought.
My parents gave me a first name that I think sounds all buttons-and-bows. That was fine when I was a 9 year old, but becomes less fitting with each passing year. I don't hate it enough to change it, but I do wish they would have named me something less cute.
But you know, it could be worse. I went to high school with a girl named Candy Cane. Her parents were lucky she didn't grow up to be a stripper. Hmm. I haven't seen her or heard anything about her since graduation, so I can't swear that she didn't....
(edit: I can't fricking spell.)