I love this name, it's unique and mysterious. Some say parents must be crazy if they ever named their son this, but I disagree. If I ever had any children, at least one of them would be Zoroaster. I think if a child had this name, he would have a wonderful life. Great name!
I have to say, while this is a pretty awesome name I wouldn't name anyone this. However, if you did name your kid this, he'd be the only kid in his class called Zoroaster. Ever. Plus, there's some pretty cool nicknames out of this. If I was a six year old boy, I would probably think it was awesome if I could legitimately say my name was "Roaster."
Sounds like "your toaster" and makes me hungry every time I say it. I couldn't name anything this and have to say it without running to the toaster to make taquitos!