Nailed them all, especially the mannerisms. He turned his hands into Chris Rock hands.
Jays the real deal. I really only view SNL as a springboard for stand-out comedians. I dont think they know what to do with him yet outside of SNL though. If this guy has range that extends into the serious/sad realm much like Robin Williams then hes set. As of right now hes untested as far as I know.