[davidwf]

Not consensus, but here's a counterpoint to all the folks implying "spend a year learning emacs". I made a failed run on "Practical Common Lisp" twice because I also tried to learn emacs at the same time, partially because of commment threads like this. I eventually went with Atom (my normal text editor) and atom-slime, and had a happy experience.

Maybe you would be shunned if you showed up at a professional CL shop for using such a setup, but if you are just wanting to try out CL for personal learning don't let emacs stop you.