I recently paid for Refactoring UI, after the rave "reviews" it's getting on HN, but was quite disappointed to find that it's mostly about design in general and doesn't have a lot to say about design problems that are specific to UI and nothing at all that takes into account the time axis of interaction design. I pretty much knew all of this stuff already from having read a much cheaper introductory book on visual design that was written with print in mind.
I'm also a bit displeased that "UI" seems to mean "webpage" these days (not even SPAs, but just laying out hypertext and graphics on a screen), whereas I always considered that to be a special case of UI that's so trivial that it almost needs to be thought of as a "degenerate" special case. It used to be called "web design" but that's probably too 90s and wouldn't sell books nowadays. I actually wanted to learn about desktop GUIs, making this wholly the wrong book for me.