I am LDS, so Mr. Romney's religion is not a problem for me. (As I suspect it would not be for most people.) However, I have my doubts about his commitment to conservatism. If Mr. Romney runs as a "moderate" Republican, I will not vote for him.
First I have no problem at all with it, however I can tell you that in states with large Christian Coalition voting blocks (mostly Southern Baptist) it will be a huge problem. They consider LDS a cult and though they will not vote for HRC they will under vote a race with Romney on the ticket.
I don't care if he practices Santa Ria, he's NOT getting my vote. His daddy's resume of businesses he helped to fail is enough of an indication. Remember the AMC Pacer? That's Mitt's first cousin.