Neuesachlichkeit is very focused zine/book, and there is certainly audience for this approach, myself included. It is also easy to conclude that claiming it to be "vastly better" compared to something else, is easily dismissed if reader is into even slightly different part of scene? If sex & violence and all things extreme is not your liking, there is very little Neuesachlichkeit would offer?
I personally recommend to get all, though. This book, Neuesachlichkeit, Personal Best, New Forces, and so on. Each have enough content that can be skipped and continue from next piece.
I agree with everything stated here. I was sorry to not be able to contribute to that book, author is a trustworthy person, but the approach of the book is diametrically different (not opposed, simply different), my the bible of filth published by my favourite French/Russian couple.
I support everything that documents the moment on a tangible support.