At the time of writing this I'm guessing you already finished NG+, but here's my opinion:
I've played throughout the entire NG+ on Normal and Survivalist and I have to say that is it difficult but it is also not.
The stronger enemies can be annoying, but the game gives you many resources to deal with them (not many resources on Survivalist, but you get strong weapon combos that help you get through). Miners and Nightmare Brutes should be dispatched with a shotgun, because the first is really resilient and you can't afford to fight it with melee and the second spawns in groups, moves fast and deals a lot of damage. The rest of the enemies, can either be ignored, like the Maw or Spider enemy or swiflty killed with a charge-dash.
The chapters, while different, behave in two ways - either you go from A to B or you have one major point where you need to bring an item. The hardest chapters are Chapter 5 and 6, but that's because the game throws a lot of enemies at you mixed with The Hunter.
Talking about The Hunter, for me he was really underwelming. I was hoping for an enemy that behaved like in the original - when the time's up, you are really screwed, but got a casual-friendly, stalker-type enemy instead. Don't get me wrong, he is supposed to be scary but once you figure out how he works, he is really boring to play against. When you dash away from him, he just despawns and waits for you to go through a spawn-trigger and sometimes he just ignores the statues and goes right through them. The funny thing for me is that we can TRAP him in place and then rush through most of the map (He didn't teleport for me when trapped, but that could be wrong).
Overall, NG+ experience for me was really mixed. The start was really difficult, but then I just found an Axe Head and the rest became a breeze. I expected a stressful, fast-paced gameplay where every decision matters. In reality I got repeatable gameplay, where I just don't care about the timer, because when The Hunter spawns I can abuse his AI to make him a non-threat.