This does not include Clojure, nor Leningen (the Clojure build tool), nor does it work on Windows or any environment that does not have apt-get. No doubt, you will end up with a perfectly suitable environment for playing around with SBCL.

edit to add: How does one even know to install SBCL and hit M-x and type slime to get started? You and I might already know these things, but it doesn't really help a stone-cold newbie, they still need a more concrete starting point.