It’s ok. I wouldn’t use it but I don’t dislike it. It has an interesting meaning. I think it might be cool to meet one in real life. Mina has some appeal as a nn. I prefer the apparent equivalent: Athena.
I also like Athena as a name, I really like names that mean intellect or wisdom and while I would name my supposed daughter or pet Sophia, my name is Sophia and that's just vain so I stick to Athena and Minerva!