Many names that have a Latin origin end in "o" for males and "a" for females (eg. Mario and Maria, Antonio and Antonia). So some people might think "Stereo" is a masculine name. However, the word "stereo" is Greek in origin, not Latin ("stereos" or "solid", as in a solid image in the audiophile sense).
As to the "cruel first gift" point you mentioned, I think that Frank Zappa's daughter, Moon Unit, changed her name when she got older, although her brother Dweezil seemed cool with his name.
Still, beauty is in the eyes and ears of the beholder so best wishes with whatever you choose. There are many beautiful, distinctive, uncommon things and names can be one of them in our modern world. My daughters have uncommon names too.
As to the "cruel first gift" point you mentioned, I think that Frank Zappa's daughter, Moon Unit, changed her name when she got older, although her brother Dweezil seemed cool with his name.
Still, beauty is in the eyes and ears of the beholder so best wishes with whatever you choose. There are many beautiful, distinctive, uncommon things and names can be one of them in our modern world. My daughters have uncommon names too.