Xochipilli2012 said it pretty good

Sleek and Clean vs slightly crowded.
Example Pez Starts by showing a title with a big blob icon and then the button Number. Lbook puts a smaller
Book Type Icon on the far right with the file size below.
IMHO adding the Spiral notebook background is NOT a step forward. The previous menu was even cleaner with a similar layout.
Some of it is just trying the other guys way (
Have you even tried the Lbook FW?).
I finally found out what that was on the "About (when reading a book) page"
It is an overly stylized
i
Deleting and Moving files is something I talked about to Amy and Jason, way back in November (when I exchanged my peeler with a bad USB connector.)
LBook does not offer all the cool colors the Astak does.