khinsen I'm pretty much in agreement. I think mine can valuable as a way to introduce people to Coalton and Common Lisp. It's nice that SBCL, QuickLisp, Coalton, and an Editor+REPL is all setup for you before you start. I fully acknowledge that this could be a huge barrier to entry for anyone curious about CL or Coalton.
With that said, I think people should eventually graduate to Emacs if they decide they want to do more Lisp development in the future. It's missing things like the ability to lookup documentation or inspect objects, and I don't know if those are in the plans for the future.