I've got 50 hours into the game so far and I'm very impressed with it.
I'm very, very impressed by the game so far. Definitely needs polish, but so far most of the elements that are there work very well. I am definitely getting mega nostalgia for BG and BG2, which is a good thing. The combat system is different enough to be unique, but I still get whiffs of the BG2 style. I really don't like the grouping mechanic just cause I've had my people trigger traps and battles because I forgot to ungroup the rogue. If there's a hotkey to group and ungroup that would be good, I haven't looked yet.
This is not a feedback post about game mechanics though. This is a post to say please don't leave this game in early access forever! It's already well worth the $60 in terms of content. I know it's tempting to polish the game to infinity and beyond, but I think with the resources you've received in pre-release sales it seems reasonable to move up the timeline.
I'm very tempted to go back and play BG2 and also pick up DOS2 just so I don't spoil too much of BG3, but I don't want to have to wait for a whole year or to play the whole thing!!
Keep it up!