I will be honest and say
Daisy reminds me of a little girl or somebody who works at a diner. I think Daisie is a better spelling because I love unique name! I totally agree that nickname shoud could directly from the name! No I do not know anybody named
Daisy. I like Daisie
Mei! Yes I do think
Daisy seems unprofessional. But pick what YOU like not what I think about it.