Well, he isn't quite as scary as Romney, but I still wouldn't be comfortable voting for him. I agree with some of his positions (he supports gay unions and is pro-choice), but other ideas of his frighten me. He's all for FairTax, for example. He also wants to abolish student loans, eliminate corporate taxes, and remove all federal funding of stem cell research. Admittedly, I'm a little biased on that last one, as stem cells saved my niece's life, but the mere fact that they are saving lives seems to me to mean that federal funding there can only be a good thing.
He's also been described as "the original Tea Party candidate". So, yeah, scary as far as I'm concerned.