hi abyss. i use the rode nt4 for pretty much anything -- overheads, ac. guitars, far mics for brass, room mics (when i'm too lazy to do m/s) -- chances are, you're bound to find lots of uses for it -- it basically does what overhead mics do - fill in the holes between closely miked tracks. you might even wanna do stereo in place miking with it for the most natural panning...
it sounds good, even if you don't care too much for mono compatibility, which it has anyway...
well, hope this helps....