Nice thread, I've been playing the Witcher 3 for some time on PS4, I think I have 20 hours already, and I agree with most of those hints.
But, about playing on Hard, I started the game on the Hard difficulty, I played on it in the first 15 hours, then I switched to Normal because there was some interesting quests that I wanted to do that was getting way too much hard to handle, like some enemies with too much life bar for example, but that's because I didn't have the correct level recommended for the quest.
But anyway, here is my advice about choosing the right Difficulty for you (Normal or Hard):
- Hard Difficulty: In my opinion, this difficulty is more focused on the "RPG elements" of the game. You will be restricted by your level, for example you can be stuck on a quest that you want to do and you will have to give up because you don't have the level necessary to overcome that challenge, otherwise you will keep failing. On the other hand, the game shows you the level recommended for the quest, so you can avoid the high level ones, but some of those is hard to know if will be hard or not until you try the quest for yourself, and give up after starting a quest is a bit frustrating.
So, I recommend Hard Difficulty for people who loves more the deep RPG aspect of games, level up, stats, equipment manangement for example is more focused in this difficulty than on Normal.
- Normal Difficulty: In this difficulty I feel that you can explore the Open World and enjoy the Story and Gameplay more without having to worry all the time about your level, there are still some difficult quests that you will have to avoid but its not a big deal like on Hard. You still have to explore the weakness of your oponent on the Normal Difficulty, so is not too easy, it really feels "Just Right".
I recommend the Normal Difficulty for the majority of people, because you can adapt your playstyle and there's a better sense of freedom in this difficulty.
So that's it, I hope this helps the people that are in doubt about the difficulty level you want to start.
And sorry about my english