Romney sounds kind of lame with his petty criticisms, which lack heft and moreover, they aren't even true. See a full list of Romney's lies here
I don't think I've heard Romney tell us what he's going to do as president, other than he'll draw lines and put our friends on one side and our foes on the other (which sounds like preschool), he'll drill baby drill, he'll repeal Obamacare, he'll end funding for Planned Parenthood (cause, you know, that's high priority in GOP world) he'll adopt Paul Ryan's budget and he'll support business in any way that he can.