Having recently read Crazy Salad again, I didn't feel like I needed to give it another go. But I have never read Scribble Scribble. So, that was great.
Ephron started a s a journalist, and I think that training informs her essays. They are personal, they are reflective, but they are also about something real, not just aimless musing.
Quality writing, often amusing, and still vital and fresh.
(edited for afterthought) In case you're wondering, apparently none of the material from Scribble Scribble made it into The Most of Nora Ephron, although some from Crazy Salad did. Just to clear things up for anyone else who might be considering a massive Ephron read.