Pretty familiar with Emacs, nrepl etc. Just a question of having enough time to familiarize myself with the ins and outs for any given new variety.

I actually did the ClojureScript tuts via LightTable, which was slightly less complex than the alternatives, but still required a bit of fussing.

(Incidentally, modifying my emacs setup in order to work on a project is the very definition of "incidental complexity".)