I like it a lot. My friend's daughter is
Amabel Faith and she gets called
Mamie and one of my Aunts has a daughter named
Amabel who goes by Bel.
I really love the meaning and it is unusual without being too weird. The only real problem is that it will be confused with
Annabel a lot but I would prefer to be named quirky
Amabel than boring
Annabel (this is coming from an
Elise who always gets called
Elsie).