I can't understand the gripes about his taxes, he does not set the tax code. He pays what the IRS says he owes. We all do that.
Religion, that's never been any of my concern as long as he did not bring it to work, or try and push it off on me. My wife says she will not vote for him due to him being LDS, She feels it's a cult. Funny, my mother feels the same way about my wife's religion, my wife is a Catholic.
As for the Gun Control, and abortion issues. Romney says he has changed his feelings about those. And for the ones that don't believe someone can change, remember Ronald Reagan was once a Democrat, he changed.