Amazing stuff from Cain, his plan was to charge in and hope something lands - it worked. Impressive because he went for takedowns immediately, JDS shrugged them off and he didn't let it knock his confidence.
Do not sleep on JDS though, he showed some amazing stuff in this fight. Heart and toughness, obviously, but the ability to land shots, defend takedowns, and get out from under Cain when he looked ready to die? That is sensational, that is some serious skill that is properly instinctual.
JDS is in the same spot Cain was a year ago, except he looked much better in his loss.