Yeah, it’s great for instant feedback. You can ask it “does this dialogue above feel out of character or stilted?” or ask it about character growth, and it will generally give an interesting critique in-line with your writing in the notepad.

You have to keep in mind that it can go off the rails (repeatedly querying it is good to check for this), and has a sycophancy bias, and is kinda dumb, but its still quite useful.