I'm very finicky with my gear and generally don't like what I try: for example I have Revival Drive (for a lot of guys is the best ever overdrive unit) at my home but I don't like it.
For me, it's like Marco78 said, if you turn it on you can't turn it off anymore. It livens up your tone and gives you some bounce and sustain to work with. Before the Unit67, I was using a Pettyjohn Chime and Barber Tone Press to accomplish the same thing. Both of those pedals are excellent, but the Unit67 is a more streamlined and effective solution.
tl;dr yesWhen you turn off the eq with the switch does that also turn off the Range knob?