I'm still working my way through the first chapter so I haven't really got anything to discuss for chapters 2 and 3 but I'll hopefully read them tomorrow and post something then.
I will say that the section in chapter 1 on proletarian culture has stood out to me. The kinds of social groups and societies Davis goes over I think are one of the things the left needs to be looking into more, reviving and updating as sites through which new comrades can be radicalised and trained.
The chapter is huge. Its fascinating and Davis is a great writer but jesus dude, give us a break lol.