The new dungeon finder is quite nice. No more flying around to get to instances, free emblems for using the random option and some extra gold.

And to my surprise: The system isn't too picky with lockout timers. Ran 3 daily heroics with my main team and decided to use my healer to get emblems of frost with another team of mine. Even though my priest was locked to DTK, OK and HoL I got into another DTK. Well, easy heroic ftw.