I've got Windows 10 on the other SSD.
Mac is for development mostly. Windows 10 for gaming but there are some other things I prefer to do on Windows.
One thing I don't like on Mac, and I know this is because I'm using standard PC keyboard and mouse and not an Apple trackpad (like on my Mac Air, which works perfectly) is the window handling. No snap to sides and so on. Makes it a pain to do some stuff.