The design of a book is sound and proven since millenia. As for the actual content of the book, it's a matter of personal preference; but with 110+ books written in the Aeon14 universe, it's safe to say it's fleshed out and consistent enough.

Not much to be improved on paper or ebooks; although you could argue for printing on recycled paper (maybe it's done already?)

I see a huge entertainment value in these stories; but that is partially in the eye of the beholder. If you are unsure it's for you, try out the first book for free on amazon (can be read online if you don't have a kindle or smartphone ;-)