Anyone out there done these quests already? Anyone trying? What do you think of them? Myself, I'm just before the Stratholme portion, slowly gathering materials. While the quests are long, the gear is of high quality and I personally really like the look of the set art - yes, it's only a slight revision from the Dungeon 1 art, but I like it a lot. I could complain that all of the sets lean heavily towards hybridization - so, for example, my priest's dungeon 2 set is neither extremely good for healing nor extremely good for damage dealing, but the set is fairly well-rounded and useful in either situation, though you can find better individual pieces to specialize in either. This may or may not suit your play-style.
[Thanks to Dave for a couple of these links.]