Overall we were really impressed. As I always do when I'm part of a beta, I'll probably write a full review/summary of my thoughts (I just feel I should present my opinion in a clear and concise way as a beta tester), but first I have a question:
How do we customize our characters? I'm glad stats are auto-assigned now, but skills being automatically unlocked really seems to limit character diversity. I know we can use artisans to create interesting weapons/armour, but beyond equipment I don't see any way for one person's Barb to be different from every other barb out there. I know you can socket abilities, but even that seems very minor compared to a full skill tree.
Am I missing a key aspect of the game that will allow us to significantly upgrade our abilities, or are you just going to end up with a different suit in your stash for each major build?
Second, although there's a nice leveling effect and you unlock new abilities/equipment by gaining levels, I still feel like leveling up isn't as exciting as it used to be, without skill selection/upgrades.
[Edit]: Thanks for the responses guys. This thread was especially helpful: http://us.battle.net/d3/en/forum/topic/3811455085
My problem was that I didn't understand how upgrading skills and stats worked now. I still feel like leveling up means less now though. Maybe I'm just old fashioned and like to improve my character directly, instead of his/her armour ;).