A scoop of instant coffee in a mug and 60 seconds in the microwave is good enough for me. Coffee is a drug delivery mechanism to me; I drink it when I don't have caffeine pills handy.
Damn, this is the most unrefined way of preparing coffee that I've heard of. I have cut down on caffeine a lot a few years ago, but I still enjoy the ritual of brewing coffee in a espresso machine or in chemex. Most of the time it's decaf, too.