Needs a lot of work. Frankly I just wish they'd take a page from BG1 and BG2 and have one screen for the Character Sheet and one screen for Inventory/Equipment. Current UI where you have separate screens for group inventory then group equipment then ANOTHER screen for character sheet, personal inventory, and personal equipment doesn't work in my opinion and is needlessly complicated. Just keep things simple please.
The Quickslot UI also needs work. No, Larian, I don't want my bar to be filled whenever I get a new skill or get a new potion/food item/scroll/bomb. Keep it blank even if we get new stuff and let us players put things there if we want to. Also, it would be nice if the quickslot bars for skills and items are separate, and not one and the same.
Also, a toggle to remove minimap would be nice (unless I'm dumb and there's already one for that and I'm just not aware).