Back when I was a newbie, and still responded to a question like, "what's the deal with effects on bass, I don't get it?" one of the points I used to make was how an effect, many different effects in fact, can change your technique. Specifically, the nature of my right hand, and how I pluck, brush, or thwak the string. An effect can promote sounds and riffs that are only possible, because of how I adjust my touch. I find it fun and inspiring.
So, while I have yet to really hear the Omnicomp at a pungent volume and discern the tonal contributions, my initial noodling reminded me of benefit of having access to Attack and Decay times. The Attack and Decay adjustments bring in a whole 'nuther level of variation in how the OC interprets your touch, leading me to alter my touch. I find it fun and inspiring.