I pretty much agree with you on all points. The good news is, is that hopefully the devs can iron these things out over time(?)
On one of my toons, nearly an entire inventory bag is full of Act 5 quest items that I don't know what to do with. About the voice acting...
In some cases, the voice acting is so bad, that my cringe reflexes make my fingers shrivel up, and the back of my neck tenses. The worse case I've encountered so far is that side quest with
To make matters worse, there seems to be a very awkward delay in the NPC's speech between paragraphs. lol
I can kind of look past these flaws, but they are most certainly noticeable. Thanks for sharing that video btw, I am stuck on that quest!