Hello!
I always wanted this pedal, and I use it in conjuction with my MXR '78 Badass Distortion, when I want tons of gain or sustain, or with MXR Carbon Copy delay for soloing.
This is my 10th MXR pedal, and it's awesome like all my MXRs. Thanks to its small size it's great for padalboards. It's built like a tank and I believe that it will last for maaaaaaany years! The jack placement is ideal. The quality of the knobs and of the switch is great.
It has four adjustment knobs for tone, output, gain and the level of 100Hz signal. It has also a "Bump" switch which boosts mids ad lows. That means a plethora of tones while it still remains an easy to use pedal.
The sound of this pedal is awesome for Hard Rock and Heavy Metal that I usually play. For higher gain, use it in front of a '78 Custom Badass Distortion, also by MXR. With the proper adjustments you'll get a killer sound with massive gain and sustain!
I strongly recomment this great pedal. The quality and the sound of MXR pedals is excellent! I hope you will find my review helpful.
Thanks!