Opinion on “matching” sibling names

We have a daughter Felicity and currently our favorite girl name is Fiona, in general I’m not the biggest fan of using all the same letters, but have seen it work really nicely (my husband doesn’t care about that aspect).. if we had a third I am very positive we wouldn’t use an “F” name.. my question: are Felicity and Fiona too cutesy/tacky/something negative together? I’m torn down the middle and would like honest feedback! I know it’s all just a matter of opinion, but still! Thanks :)