Good to see WS making an effort in the coffee space. I don't fly WS as often as AC or UA, but I've found their current coffee to be undrinkable. McDonald's isn't my favorite coffee, but it'll be an upgrade from their current offerings, and probably a smart promotion opportunity for McDonald's as well.

FWIW, I think UA's illy coffee is probably the best out of the major North American carriers, although I'll admit I haven't tried 4N (what coffee do they serve?).