Yeah it is fine - but you do have to play it or you lose out on the potential gains of the weekly dungeon.
One odd thing but I seem to be getting double daily quests to complete on reset - twice I think it has happened and I seem to get two keys for doing them too - anyone else seen this or am I going mad? I get two of each daily quests and when I do a quest I get both 'claims' so I seem to have double the keys? Maybe just lucky or a glitch but I am sure that is two days I have had this happen.