i dont get the hate for nook miles tbh.
I suppose some people are just against change, which I think completely defeats the purpose of a new sequel. We all saw how City Folk went, and how unexciting it was to play what was, for the most part, a simple port. The appeal in New Horizons is the fact that, well, everything is new, and I think that's an awesome thing.
Personally, I like the Nook Miles system from what I saw. Using them to unlock new hairstyles, amongst many other things, gives me more objectives in the game, which will keep me playing longer. It's the same deal with crafting furniture/tools, too. Lessening the prominence of bells in the game makes it feel as if there are just so many other goals to work towards, and makes the game less of a huge money grind.
And I love the new hairstyles, especially the masculine ones. I've been stuck using the same one all throughout New Leaf because I didn't like the other options, but now I can definitely see myself switching between many different ones. The art style and physics just makes it 10x better!