Not much to add to my thoughts about the Reread for Books 1-4. Leigh is funny and insightful and I wouldn't have gotten half out of this reread if it wasn't for reading her thoughts. The only quibble I have is that often (this is on tor.com, I didn't read the e-books which may not have this) she refers to old commentary on certain issues such as 'Who killed ---------?' and links to dead pages. If those forums or arguments are mirrored somewhere, I don't know where to find them.
Most people won't be interested in the old arguments now that most questions have been settled so don't let that deter you from checking these out.