The reason I proposed this is to give us something to do on a daily basis with hopefully minimal dev effort and the side effect would be keeping people subbed. The rewards are mostly the tomes and the reverse sync would make it like your doing it on level but you have all of your max level skills and abilities. This is in addition to the existing roulettes but I have to admit, as a dungeon lover, this would be more enjoyable than the same two expert dungeons for months on end. The pool of dungeons that this can draw from is over 100!