For many, many years you've basically had 2 choices for your Overdrive/Distortion pedals: You could either get "Soft-clipped" Bluesy, slightly compressed, (Toob Screemer, FD2, etc.) type Overdrive pedals... or you could get "Hard-Clipped" (OCD, Distortion+, Boss DS-1, etc.) type Distortion pedals.
What if there was a pedal that offered both? There is now... the Fulltone PlimSoul with it's Patented (US Patent#8471136) and completely unique dual stage clipping circuit which VERY accurately replicates not only the sound, but *the feel* of a tube amp with all of its subtleties and complexities.