Occupy is probably pretty close to a popular movement that many anarchists dream about. I never participated but from what I heard / read it seems your judgement seems to spot on.
I think its important to point out, that even if a movement tries to put some anarchist ideals into practices, the goals often are not in line with anarchist ideals. Also more often than not, its really hard to have no hierarchies in a broader movement. Privilege and unspoken hierarchies around knowledge, skill and connections still exist and sometimes get really highlighted in supposedly "non hierarchical" environments.
If you like reading, there a lots of anarchist perspectives and shared experiences on the occupy movement in the anarchist library.