Is he as kooky as his old man? No, he is conservative, except for his "immigration reform".
I really don’t know much about him. His budget is better than Paul Ryan's, he would make a good VP candidate, but unless he can deftly handle the press like Ronald Reagan, he probably won't be able to be President (with the current electorate it might be hard for even Reagan to be elected).
Here's a link to a summary of
his 2013 proposed Federal budget.