I don't have any AE-s but this is what I know about them:
-The books are as big as the original art was
- the pages are high quality colour scanns of the original pages ( I guess they scanned what was available, donno in case of Kirby it means inked pages or just pencils) including notes, caffee spots, etc.
-the paperstock is similar to the paper the artist used
-overall the built quality is excellent
-you gonna get 1000 experience points and rise to the next level with a pink soulsword if you buy one