I wouldn't describe him as a moderate. He does not back away from confrontations with foreign diplomats or the foreign press. He's a staunch defender of socialism. He told CNN in October that he predicts "more revolution and more socialism in Cuba" after the death of Fidel Castro.
Hillary Clinton, of course, is a political veteran. She's intelligent, determined and not to be underestimated. I would love to be in the room when she and Perez Roque meet.