First an foremost: You're better off reading many of the books that he uses as resources before you are this one because he super-oversimplifies everything in ways that remove context and information. (This includes Automating Inequality by Virginia Eubanks and Weapons of Math Destruction by Cathy O'Neil.)

Second, he intentionally erases a huge chunk of history in order to (attempt to) achieve his stated goal in the introduction, which is to convince people to be Marxists. He completely writes out any time anarchists even participate in something, and it's particularly egregious when talking about the IWW (an organisation that has been very much shaped by interactions with anarchists). He intentionally overlooks people (socialists and anarchists) who could make his point simply because they can't be vaguely referenced as 'communist' and co-opted into Marxist thought. It's really blatantly frustrating.

That said, there are some points where I was made curious. But that would've happened with any other book, to be honest.