I feel the same way. I'm sure he's an excellent person, with a lot of class and integrity. But what specific things has he said he would do as President that we can point to and say 'I like that?'.
As far as I can tell, nothing. I might not like Trump as a person quite as much as Carson. But Trump has said he will do a lot of things that I would like to see the President do, in fact I think it's absolutely necessary to do.
Carson is a safe choice for many people to hide out in while the flak is heavy on other candidates.