Alright, I put more time into this new beta (I play on normal). Most of my comment might not mean much because I'm mostly comparing to previous builds. This have gone a long way in 6 months, that much I can say.
Backgrounds are less washed out so characters stand out more. I really like the look now.
Combat still need a bit of balancing (and bug fixing, dev already fixed some of the issues internally though), but I'm really liking it (doesn't mean everyone will). Character don't die as fast as before but fights aren't dragged out either, the annoying ability queuing issues seems to be gone (characters finally do what you tell them to do yeah!) and casting is faster so you can actually respond in a emergency fashion now. Stone beetles are still a pain the ass but that's apparently by design. People will probably pause->order a bit more than in the IE games though (more actives in general).
Picking stuff *cough*stealing*cough* from certain contains now lower your reputation with the locals. I think you need to be spotted, but it's a nice touch that wasn't present before. I know that some people can attack you too because it happened to me before.
VO and sound have been improved, now in combat you can actually use the audio cue for issues instead of always having to keep an eye on the log for not working weapons or stuff like that. Also,
orchestra makes everything sound better.
I only tried a Chanter and Barbarian so far as characters (but BB party has a Wizard, Rogue, Priest and Fighter). Fighters are very flexible now, people are probably going to wonder what they are going to take each levels. Since the fix to damage calculation, Rogue probably need a little buff…poor Rogues they used to be OP. Priest are now much better with the new casting/recovery speed (and DEX working), this mean you can have them do other thing than stand back in case you need to cast something. Some people are complaining that Chanter go a nerf this build, but I personally think they got a buff compared to the last build. Barbarian don't die as fast as before which makes them proper frontliners now. Last build I tried a Monk and they were pretty fun too in the "punch things in the fast super fast" sense.
For the first time, I used potions because they now have useful buffs and I could craft some because the BB characters come with crafting mats. Oh and I talked about "emergency action", drinking "health potion" now it works very well. BB Fighter was almost downed but he was able to drink his cool-aid and survive the Stone Beetles.
Now I'm probably making the Stone Beetles sound more crazy than I should. What happened is that I went full on a the first one spotted and there were 3 wood beetles and two other Stone Beetle and got swarmed without much planning a tactic. I lost two characters, but the rest managed to win the encounter. In previous build, everyone would have died in a few seconds if I had played like that. So this is an improvement, in both character responsiveness and in how you can turn a losing encounter into a winning one by using your resources (potions, spells, etc).