With respect to HoD, I noticed that after I purchased the first level of Hand of Tranquility, it was healing for what HoD3 used to (so until it is fixed, I am using HoD hotkey, instead of the new hotkey).
On the topic of Armor of the Inquisitor, I will have to look again after the patch, but I'm certain that when I had it up, clicking 2.0 overwrote the effect.
As far as AU - yes, level one was poor, but level two seemed to up the damage nicely enough (previously my common high with champion was 14711, with AU2 I was seeing 154XX hits fairly common [with champion]). Not an enormous increase but worth the investment imo. I only got to level 74 by the time this morning's patch hit so I can't say how AU3 looks.