I really like it. I know one adult Stella and it makes me think of a classy powerful woman. Would have loved to use it but a) we have two boys and b) it really rhymes with our surname.
My OH really liked it too but I didn't take his suggestion of Stella and Artois too seriously if we had girl/boy twins!
His alternative was Jenna which sounded even worse with our surname but is a lovely name too.