Like any octave or sub pedal the reproduction capability really depends on your amp, technique, note played, and pedal. How low are you playing? The Meatbox excels above the 12th fret as you'd expect but I also use it down to the E on the A string and sometimes even lower.
Also, how loud are you playing? It's a weird pedal, it can seem like it is hard to get unity at bedroom settings but crank it up to gig levels and it can be hard to set it up so it isn't too loud. The problem I had was making sure it doesn't sound like there is no bass when I turn it off.