Is the book "My System" worth getting?

One can get some idea of the lasting scope of the respect for My System by looking at:
https://www.chess.com/article/view/the-best-chess-books-ever
Still, it might be noted that My System apparently did not occur to GM Yasser Seirawan as something to include in his list of personal favorites, and Aaron Nimzowitsch was not identified by the GM as a very worthy author.

https://www.chess.com/blog/RoaringPawn/an-open-letter-to-the-four-time-us-chess-champion-gm-yasser-seirawan

https://www.chess.com/blog/GMYAZ/open-letter-response-user-radovics-letter-to-me

My System has accumulated some direct negative commentary over the years.
"... I found [the books of Aaron Nimzowitsch to be] very difficult to read or understand. ... [Nimzowitsch: A Reappraisal by Raymond Keene explains his] thinking and influence on the modern game in a far more lucid and accessible way. ... The books that are most highly thought of are not necessarily the most useful. Go with those that you find to be readable; ..." - GM Nigel Davies (2010)
In 2016, IM pfren wrote:
"My System is an iconoclastic book. A lot of things in there is sheer provocation, and it does need an expereienced player to know what exactly must be taken at its face value.
I love 'My System', and I have read it cover to cover one dozen times, but suggesting it to a class player is an entirely different matter."
Also: "[Some things] ARE wrong, and it's not easy for a non-advanced player to discover those wrong claims.
Nigel Short has claimed that 'My System' should be banned. Stratos Grivas says that the book is very bad. I don't share their opinion, but I am pretty sure that there are more useful reads for class players out there."
Although he is a fan of My System, IM John Watson similarly acknowledged (2013) that:
"... Not everything in it has stood the test of time, ..."
http://theweekinchess.com/john-watson-reviews/john-watson-book-review-108-of-eplus-books-part-2-nimzowitsch-classics
One last point to keep in mind is that, even if My System would eventually help a player, it might not necessarily be helpful to a player now.
"... Just because a book contains lots of information that you don’t know, it doesn’t necessarily mean that it will be extremely helpful in making you better at this point in your chess development. ..." - Dan Heisman (2001)
https://web.archive.org/web/20140626180930/http://www.chesscafe.com/text/heisman06.pdf
A My System sample can be seen at:

https://www.qualitychess.co.uk/ebooks/MySystem-excerpt.pdf

A Chess Praxis sample can be seen at:

https://www.qualitychess.co.uk/ebooks/ChessPraxis-excerpt.pdf

Various samples:

https://www.newinchess.com/media/wysiwyg/product_pdf/9027.pdf

https://www.chess.com/forum/view/general/for-beginners-chess-resources-for-beginners-and-beyond?page=3

https://www.chess.com/forum/view/general/which-book-should-i-read-first

It pretty much means he thinks the book is crap. 

My System (and Chess Praxis) are not the greatest books ever, but they are great, and required reading.

Seirawan is certainly entitled to his opinion as a former top player. But there are plenty of other top players who swear by Nimzowitsch, or at least recommend reading his works.

Get this one: https://www.amazon.com/Fine-Art-Chess-Lyudmil-Tsvetkov-ebook/dp/B07SPFTJSZ/ref=sr_1_1?qid=1571012503&refinements=p_27%3ALyudmil+Tsvetkov&s=digital-text&sr=1-1&text=Lyudmil+Tsvetkov

that will become real classic 20 years from now.

Lol, do I believe myself in earnest?

It IS already real classic, far superior in terms of chess knowledge to Nimzo's book,

and even easier to read, probably much more instructive too, but, due to my ill fate,

it will probably never take off, lo-oooool.

What can I do about it?

Welcome to the chess books and equipment forum!

OK, on the topic.

Granted, Nimzovich may not have discovered all things new, but what did Mr. Seirawan discover?

Apart from the fact that selling dumbed-down books for beginners really sells.

As it happens, I am the only person that has discovered something worthwhile in chess in the last 50 years or so, and still NO ONE reads me, simply because I lack the necessary high-ranking titles.

What can I possibly do about it?

Thanks buddy!

I don't think I know you, but your nickname sticks.

I am in a bit sour mood today, hence my verbal splurges, but they are all warranted;

yeah, they are all warranted.

Perspective on Aron Nimzowitsch's "My System"...

https://www.chess.com/blog/RussBell/perspective-on-my-system-by-aron-nimzowitsch

and my posts on the subject in this forum thread...

https://www.chess.com/forum/view/general/which-book-should-i-read-first

There is a huge difference in (english) readability between the translation of the Quality Chess edition of "My System" and the translation of the Hays Publishing 21st Century Edition of the book.  The Quality Chess Edition attempts to be faithful to, and preserve the original pedantic writing style of Nimzowitsch, whereas the Hays translation is rendered in modern english, making it a much easier read.  In fact, Yasser Seirawan, in his laudatory Introduction to the Hays edition, points this out.

You can use the Amazon's "Look Inside" feature of the Hays edition here to compare its writing/translation style with that of the Quality Chess excerpts/samples from Spongey's post above (a portion of Yasser Seirawan's introduction to the book is also reproduced)...

https://www.amazon.com/My-System-Century-Aron-Nimzowitsch/dp/1880673851/ref=sr_1_3?crid=QQIYFYXQIJKK&keywords=my+system+aron+nimzowitsch&qid=1571075835&s=books&sprefix=my+system%2Caps%2C204&sr=1-3

The Quality Chess edition did not exist at the time of the 1991 Seirawan introduction.

Yes.  To be clear....Yasser Seirawan makes no reference to the Quality Chess edition of My System, in his introduction to the Hays Publishing edition.