SICP?

Is SICP actually good or is this another one of your silly memes?

I assume the pros and cons are just about the differences between imperative and functional programming. I don't know much about scheme (since im not studying at MIT), but i can't think that the basic concepts of it are much different from Erlang (this is great btw) or Haskel except for the syntax and some language specific features. Or am i totally wrong here?