I felt he didn't touch enough on the cultural differences, and on how to handle areas where there are no resources. But ya, the core message still holds, specialty when he talks about how the middle class is the main obstacle to a equal sociaty
It took me while to see why, but I can't denied it now
It's a really outdated book about a "perfect" anarchist sociaty. I started reading it for the political theme, but the author was so hopeful and puts so must trust in common people that I couldn't stop smile while reading it. It hit me harder that I could've ever imagined, I started putting more trust in others and totally changed the way I confront people. At that time I was a team leader in a really chaotic company and the change of approach did wonders. Management even started to receive request from other developers to join our team.
In my country we still have a old school communist party, and despite their radical ideas like saying north Korea is a democracy or support maduro in Venezuela, when you hear their political campaign is all about raising minimum wage and a restricted House market. In the other way, when we look at the far right party, it's all about how the immigrants are eating tax money or defending a small government with a total control for one leader.
So it's not that radical left doesn't exist, it's just that they drop their guns and what's left it's not that loud.