Definitely a disappointment. Blizzard gave us 1/4 of a game. I know I sound like a broken record, but I truly believe all Blizz needs to do is add arena styled pvp (similar to what they promised us in d3) introduce runes or set items, because grinding for marginal gains on re-rolled stats and aspects is the most tedious, boring gear grind. They also need to raise the difficulty, so the end-game content isn't soloable. There are no social interactions/incentives because everyone just solos t100.