Amazing sound with this pedal! JUST LIKE CLIFF'S SOUND IN ANESTHESIA! The only problem I have with the wah part is the range of the pedal itself - because it's an optical coupling, there isn't much possibiliy in configuring this pedal, outisde cutting the opening a bit wider in the black plastic shade that stands in front of the optical connector. Morley have told me they didn't have many options to offer me, but said I should experiment. If I had a black plastic to use, I probably would! That said, the sound is absolutely amazing, the fuzz is very nice and has a cool modern/vintage setting which truly colors it differently. Most people will use this to play Metallica stuff, but I just find it very creative and "steely" sound to use all over the place.
This wah/fuzz pedal is heavy and is one of my staple pedals that I use for my rig. It delivers that signature wah sound found in the bass solo (Anesthesia) - Pulling Teeth played by Cliff Burton. It's a solid wah and a well built pedal.
I can not compare this one to the original seventies Morley - Cliff used - 'cause never played one, but if you're playing Metallica, especially the older - Cliff Burton stuff, this is a must have. In order to get as close as possible to his solo tone (Anesthesia, For Whom the Bell Tolls, Orion, etc.) you have to use it with a compressor before and a Big Muff after. Have fun!