About 2 minutes into trying the Gurus Amps 1959 Doubledecker guitar overdrive preamp I totally forgot I was plugged into a pedal and felt like I had just discovered a killer amp. My clean combo never sounded so amazing as far as overdrive is concerned. Then I used the 1959 Doubledecker direct into a USB interface to record my guitar and I had the same feeling. This is an amazing pedal! It sounds like a great overdriven amp at any volume with total touch response and dynamics. The tube driven circuitry makes a huge difference over solid statre overdrives. From mild dirt to fairly heavy distortion, it never stops being a blast to play and I must admit I am now spoiled!