I love this thing! Fantastic audio quality. I think the fuzz sounds really great. Easily among the finest Big Fuzz clones on the market and I like the fact that you got the 3-way mid range switch, allowing for a wide range of different tones from the era. And the filter really lets you hone in the tones. My main issue with the Dark Side is the fact that you can't have a modulation effect and the delay selected at the same time. They share the same circuit and can't be used simultaneously. Delay is a critical part of David's sound. Overall, it sounds great and I have had no problem using it as a part of my rig. This being the 2nd iteration of the pedal, I do wish Mr. Keeley would've left the insert capability. I prefer to have my overdrive after my Fuzz, and before any modulation.