Excellent game, this. Really enjoying it. I'm currently at the (2nd) Hornet fight, and flipping blimey, it's a frustrating one. Even though she's pretty much the same as the first time, I'm really struggling with it. I had to put down my switch last night because I knew I end up throwing it across the room if I didn't!
Boss frustration aside, this game is structured brilliantly. I'm pretty far in, but I haven't been stuck once. Even if you're in an area where you don't know what to do, revisiting old areas will usually set you on the right path because you'll now have abilities you didn't have when you initially visited them.
I do wish, though, that there were more fast travel options. The stag stations are fine, but not all areas seem to have one, so it can sometimes be a mission if you want to, for example, go to the nail upgrade guy because you've just found a pale ore. Of course, it's entirely possible that all areas do in fact have a stag station, but I've just not found them all. I would like to see (perhaps as a new game + option) the ability to warp between benches. But then again, maybe that's too much and would detract from the exploration. Good thing I don't design games, I wouldn't have a bloody clue.