While I think Mormon theology has some really strange aspects, I personally don't have a 'problem' with Mormons.
Having said that, there are a lot of conservative Christians who more or less view Mormonism as a non-Christian cult, so I would guess more than a few GOP primary voters in key states, like SC, might hold it against Romney.
My own problem with Mitt Romney so far isn't his faith, but his name. I'm not sure I want a president named "Mitt". George, James, Thomas, John, Andrew, William....Mitt. It just doesn't fit. "Mitt" sounds like "Biff" or "Skippy".
Actually, I think his first name is Willard, Mitt is his middle name that he goes by.
Mitt is fine. We don't want another Willy in the WH.
"Mitt. It just doesn't fit."
Having a Johnny Cochrane moment?