Yes, there are a number of things that could be better, and there are an almost infinite number of things that *could* have been added, but most would just be "nice to have" rather than detract from the game ( at least on first play ). Of the failings you mention, the one that is really annoying for me is the lack of visibillity into your future class progression. It's difficult to make decisions on character design as you go along, particularly as you can't rely on the game being exactly like 5e. A distant second would be character visuals, since I don't like my look as much after playing for a number of hours.
More concerning is some of the dialog and pacing.
For example, the "new" Wyll and Karlach story seems forced and unconvincingly written ( as far as I have got through it ), with Karlach seeming to have lost the gravitas you might expect from someone in her position, and Wyll's new story seeming to be crowbarred onto the original story foundations.
Similarly with pacing, the dialog triggers don't seem to be properly spread out to give the pacing of progress I would expect ( either noone wants to talk to me in camp, or everyone wants to comment on multiple events. Next playthrough, I think I will long rest after every encounter, just to try to even the dialog progress out.
That said, the game is very enjoyable, and is perfectly stable; thats more than can be said for a lot of game releases.
