Not much into pedals as I have other ways to get what I want, but I have heard both good and bad about this one. Seems just like anything else in that it has its supporters and detractors. What it will come down to is whether or not YOU like what it does for your sound. I've also bought a LOT of stuff from AMS. Love those guys and their payment plan!

Zombre will probably have some things to tell you about it, but I haven't seen him around for months.

Anyway, if you already ordered it, you'll make your own opinion pretty soon.

It's a very good pedal man. I got mine about a week ago with a Vox 487A wah pedal. Together I can get the Jimi Hendrix/Cream sound.

Alone the Big Muff gives a muffed bluesy sound or others would say a muffed crunchy grungy sound. Bands like Nirvana, Red Hot Chili Peppers, Santana, Pink Floyd and The Smashing Pumpkins and others used it a lot.

It's a very nice pedal.

But, don't expect a metal distortion tone, because that isn't what it is.

Here's what my guitar teacher told me when I was contemplating about buying one:

"This pedal has a very unique sound, I'd say the distortion sounds that became famous in the 70's. Although Jimmy page didn't always use pedals for distortion you can definitely get some led zep tones with this pedal. Keep in mind that this pedal has cut back mids no matter what, so you might like that or you might not, but it sure sets it apart. Many famous guitarists have used this pedal such as John Frusciante of the Red hot chili's and David Gilmour of Pink Floyd, which kind of tells you something. If you want to hear what the pedal sounds like for solos, listen to the solo in the RHCP song "I could have lied". The band Bush (sorry I don't know the guitarist's name) uses this a lot, and a perfect example of how it sounds when you turn the sustain knob down and use it as a fuzz can be heard on their song "Swallowed". At the beginning of the song he is playing chords softly so it provides a light distortion/fuzz. Then when the chorus comes around he strums harder so it provides more distortion. To me it sounds great (it didn't always fit my style though, but read on). Also the song Glycerine is a great example."