Haven't played since Cata. Are disc priests still fun?

Hey guys,

I played casually back in Cataclysm and loved healing as a Discipline priest. Frantically bubbling was always incredibly fun. I read the new WoW page on changes and it sounds like the spec has completely changed. Do they have the same gameplay feeling in dungeons, like you're juggling triage? If not, what healing spec feels most like that now?