I have only gotten through about half the content of the beta, but I figured I should finally get around to adding my impressions so far to the mix as far as what the devs are especially keen on:
Classes
Pleased for the most part. The Paladin thus far is by far and large my favorite. It takes the rather bland fighter and gives it some enjoyable abilities. I also enjoy not having to necessarily follow a "Lawful Good" path. I like my morality to be a bit on the grey side.
I found the wizard and cleric tough to use to their full potential. I have yet to take the time to fully explore all the spells, and I'm sure I'm alone in the thought that there are just too many spells to wrap my head around. Once I spend more time with those classes I'm sure I'll come to appreciate them more. I had the same issues with the BG series when it came to wizards and clerics so I'm hoping it will just take more time to get used to them.
I wanted to mention the rogue specifically. I found myself disappointed with this class. There's a good chance I'm missing something, but there seemed to be little advantage to playing as one. I'd love to see an ability that really gives the rogue a unique advantage over other classes. Otherwise, I'm pleased with how the classes are laid out.
Races
Races look good. They seem distinct and fitting for their lore. The only race I do not like the look of is the death godlike. I like the back story, but i just think their "death-helms" are too exaggerated in scale. I'd be thrilled if they were scaled back some.
As far as bonuses and abilities go, I have to echo many of the folks on the forums that they do not seem to practically affect very much. It is hard to tell from how the beta is set up, but my impression is as it stands any bonuses will only offer a mild advantage early on in the full game. Is that the intent?
Attributes
I've noticed a lot has been said on this already. Honestly it is difficult for me to fully understand how much impact attributes are actually having in combat. Combat needs to be cleaned up before I'll be able to get a good feel for attributes. Their usage in conversation is good. Keep doing that!
Equipment
So far so good. I didn't think I would like the introduction of firearms, but so far I think I'm a fan. They are a bit OP right now, but adds a fantastic gameplay element. I'm pumped for more loot gathering!
Craft & Enchant
I did not use this. I'll explore it more when things stop disappearing from my inventory.
Convo & Quest
Looks and feels exactly how I wanted and expected.
Combat
Oh boy. I feel like you guys probably already know...
UI
It feels... bulky. I like my UI trim and lean personally. The log also feels like it's in the wrong place. Maybe I'm just used to it being centered, but I think it would also be better served being aligned to the left of the screen. I know it sounds picky, but there's something about it being aligned to the right that just seems grating.
I do not care for the inventory system. The personal inventory seems too small, and the unlimited stash or whatever it is supposed to be seems to defeat the purpose of limited personal inventory. I should not be able to carry everything out of a dungeon. Unfortunately I'm not sure what I want to see instead, but I thought I'd mention it anyway...
Conclusion
Overall I like what I see. Overwhelmingly this looks like what I wanted when I backed this project. I, among others, am skeptical about this being completed by the end of the year, but I base that on absolutely zero knowledge of game production. I'd just like to mention that I'd much rather see this game delayed than released with issues. I understand there are budgets and such to take into account as far as delays, but I'm supportive of you guys taking all the time you need to work on the game that fits in your budgets and projections. I'll be eagerly awaiting the next update!