I just gotta say, after three days of playing the new patch, this is like a whole new game. So many things were changed (for the better thus far), game looks better, and item drops make it just so much more fun to play.
I grabbed my old Wizard (lvl 60, but with junk gear) and within an hour of playing on Master, I went from doing 16k dmg with around 30k health, to 57k dmg and 123 health (Toughness of 776k!). It was very slow going only doing 16k dmg, but things got better quickly. I had played this char quite a bit before and had beat hell difficulty (inferno was too much, but my other chars played inferno only), but never found good gear really. My other chars bought most of their gear as opposed to finding it.
Anyway, just really happy with the new loot system. Even my more decked out chars are finding items that are better than what they had.