Turn-based combat is fine. Think of it as real-time with auto-pause for each character.

BG III portraits are of course based on your character appearance choices during creation. I like that well enough, but I would have also liked to see scaling like they did in NWN2, where you can modify the width and height by a certain percentage.

One thing about BG III that still bugs me is the concentration requirement for certain spells. In the older games you could cast blur on yourself, launch a cloudkill, and put a hold person on someone else and have these all going at the same time. In BG III you can galide with only one of those three to concentrate upon.