Here is some in-depth criticism of the coop movement: https://www.jacobinmag.com/2016/03/w...ff-alperovitz/ The relation to the state and the competitive market pressures are extremely important.
Yeah, he is easy to follow, I myself listened to him when I started learning. But I think he is glossing over some things or distorting the larger picture of capitalism as a system to support his advocation of cooperatives. I came to this conclusion from reading Capital itself (also reading David Harvey's companion book and lectures, I feel he has prejudices as well but they are not as egregious as Wolff).
Wolff is useful at times but have you been exposed to other socialist thinkers? You seem to basically always link stuff from him.