This simply works, period. On occasions where DC offset gets introduced through effects processing, or as part of the original signal, Doffset works totally transparently to strip the problem aspect of the signal out. Other than that, it does nothing...which is precisely what you want! I've reached for it numerous times when a rogue plugin has generated a DC offset, and every time, it gets the job done. I'd describe it as pretty essential for those who do a lot of sound design, heavy mix processing, and the like.