Understanding the Sicilian - Criticism

Someone attacked my book Understanding The Sicilian in an Amazon review. https://www.amazon.com/Understanding-Sicilian-Mikhail-Golubev/dp/1911465104/
Well, I'm still alive, ready to discuss this.
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1.0 out of 5 stars
ByTrader19 on October 15, 2017
Format: Kindle Edition|Verified Purchase
Seasoned chess player here...long time player and National Master. There is nothing new in this book that hasn't been seen or written by this author before, it is just a dump of his other articles. He is not a top GM, and spends really too much time on the Dragon, which is not a mainstream Sicilian line, nor is the Sozin, another line he prefers. I wish he had gone into more depth, at least presented the leading games of his openings, the title of this book should be " a bunch of my games and old analysis on the Sicilian"
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MikhailGolubevOdessa 7 hours ago
Re <<There is nothing new in this book that hasn't been seen or written by this author before>>
with all due respect, but what you wrote is untrue to put it mildly: each and every game, which had been annotated before, is annotated anew - with, naturally, countless hundreds of new suggestions and conclusions in this book;
moreover, in the introduction I mentioned specifically the method how the effect of developing the most fresh look at the old games/positions had been achieved;
working on this book was a two years long project for mе +35 more years of dealing with a topic (25 years professionally).
but indeed every unhappy reader (you actually can be the first who is unhappy that much!) has a right to write such dirty superficial comments as you did, thank you anyway for investing your time