I do like it, although I don't think I like it enough to use it personally. I'm not sure why I like it. I think it's softer sounding than
Elizabeth and I tend to like that in names.
I think it goes fine with
Harvey and the ln
Carter.
I don't like the nn
Elsie though. Other nn suggestions would be
Elle,
Ellie,
Ella,
Elsa, Peth, Pethy, Pet,
Les, although I don't care much for any of those either.
I think
Elspeth Miriam is very pretty. You didn't ask, but I think
Clara,
Miriam and
Margaret all sound good as sibs to
Harvey and
Elspeth as well.