It should also be mentioned that despite what the game says, you do not need to use the Duty Finder to access the dungeon, at least, not directly - you can manually form your party and click on the entrance to the dungeon to enter, however the game still uses the DF as a kind of 'gatekeeper' when entering, checking your party's status to ensure you have a tank and healer which are requirements for all dungeons. In fact, I've only used the Duty Finder the 'normal' way only once, as all the other times I've done dungeon runs have been in a manually formed static with friends.