I was named after my nan.
I have always hated my name Margaret-Anne.
I am called Anne by everyone who knows me but all my passport,bank detail etc is Margaret-Anne, even when i got married they had to say Margaret-Anne, so their was another day ruined over my name.
Growing up with an old fashioned name is hard and it really made me miserable and i would never name any of mine after anyone and after all they are a person in their own right.
But if you really like the name then hey why not people will get used to it.
My hubby named both my kids and i didnt like his choice (but couldnt think of any myself

) but now i love my kids names as it suits them and they like their names which of course helps too.
The only thing i would say is give her a middle name so if she hates it she's got something else to use