I have the original. I bought my MOOG 108 years ago because my MXR 4-knob flanger had a volume drop when engaged that drove me crazy and the MOOG has a variable output. Once I got the Eventide H9 it pretty much went into mothballs due to its size and inability to switch sounds on the fly. However, if someone is a bedroom or studio guitarist who needs a lot of flexibility and variety with modulation, or a set-it-and-forget-it type of user, this pedal could be a huge benefit. Great sounding and very flexible.