I'm rated around 1960, not yet over 2000, but Imo it's a pretty good book. It goes way beyond 'rudimentary' endgame principles and positions.
Also, the further along you get in the book, the higher rating range it was written for, so by the time you get near the end, the material is for master or higher level players, so yes - you'll get a lot of worth out of the book.
And as always, Silman is one of the best chess writers I've ever read.
As part of my continuing return to chess, I think it's time for me to start studying endgames in greater detail. Currently I'm working my way through Capablanca's Best Chess Endings, which is enjoyable and instructive, but something more in-depth is required.
My best resource at the moment is Practical Chess Endings, by Paul Keres. I had worked through most of that back in the day, and I could do the same again... but I keep reading good things about Silman's Complete Endgame Course, which seems to be relatively new. I got a lot out of his middlegame book, so I'm curious if maybe this would be a fresh & worthwhile alternative?
If any high-level (say, >2000) players have seen it, would you be so kind as to share your opinions? Is there a lot of good material there, especially someone who is already (or at least once was! ) familiar with rudimentary endgame principles and positions?