It's entirely too nickname-y to me, but it seems to be more of a trend in the U.K. (and maybe Australia), but it probably just hasn't hit the U.S. yet. :-/ I like
Eve, and
Eva,
Evangeline and
Evelyn are lovely as well, with
Evie as a nn even, but not on its own. But I feel the same way about
Charlie,
Ellie and Millie--they are nicknames, NOT formal names--which are also quite high up on popularity lists in the U.K.
~
Heather~