I enjoyed Surface Detail, but found Matter boring. Transitions was pretty good too, but I agree that his earlier books are much better.
Recently read Surely You're Joking Mr Feynman, I can't say a lot about it except to read it if you haven't. The man led an interesting life, and it's full of entertaining stories. Also finished Agent Zigzag, a biography of the WW2 double agent Eddie Chapman. It sounded far fetched from the blurb, but was surprisingly believable and seems well researched, if embellished a little for the sake of storytelling.