I don't mind it, but I don't particularly like it. All the appeal of the name
Sidney, for me personally, is reserved for the boy name, and the place name for girls just seems like a trend I guess I'm too old to enjoy. It's sort of like
Lindsay,
Kelsey,
Ashley - a fading-fad preppy-ish name. And it's like
Addison and
Hayley will be in ten years or so. I think all these names will be like
Amber and
Robin, someday - they'll seem to indicate the woman's age group fairly accurately, and go out of fashion completely but at a moderate pace. There's a bright and studious girl of about 12ish living on my street, named
Sydney (with sister
Ashley), and she wears it well. It's not excessively spunkified, and it isn't one of those names that seems to me like it depends on the female bearer being conventionally attractive and feminine to keep it from sounding ugly (
Addison,
Harley,
Brooklyn,
London). To me
Sydney is just preppy, and feminine in a very modern way.