I don't think its that bad. They have, admittedly, shot themselves in the foot with certain things by not being true to 5e, but I still enjoy the game a lot. I love the diversity of choices I can make. I have played over 300 hours now and still find new things because Im making new choices or dice rolls go differently for me. Some battles were initially hard but then in later playthroughs were easy, and vice versa. Overall, it is a good game if we could get the bugs exterminated.
That said, most of my suggestions I think would make the game better, and most of my suggestions could be summed up with, "Please stay more true to 5e rules. That would make the game better and more realistic and immersive."
It's not just that it would make the game better, it's more like it would make it a lot easier to balance and they would waste a lot less time deciding how to make up each skill/spell/action/rule. At least that way the million barrels, healing sources and throwables would be optional for the players that want to play more like D&D. I don't have any complaints about the dialogue stuff and graphics, if anything they should branch dialogue or add unique dialogue for specific classes even more.