For a nickname-y first name, I really like it. I prefer it to the trendy
Haley, which is much more popular around her. I am partial to it because of a good association, however, so my point of view is definitely biased. The schoolmate I know's name is actually
Hilda (family name) and her nn is
Hallie. Nowadays people often mispronounce it as
Haley, which could be a turnoff.