Hello, Hope you are all doing great! I am new to this forum! I am very happy that I joined it! I recently purchased and received from Amazon.com, this nice looking compressor pedal. It is my first comp pedal so I don't have any comparison. I read on what a comp pedal is supposed to do and I really liked what I read, so I decided to give it a try with this inexpensive pedal, $37.79, shipped. So far I love the sound/tone and the thickness it gives to the signal. I like what the Sustain and Level knob do to my tone/sound, but I just have not been able to hear what the Attack knob does. I have tried putting the Sustain and Level knob in different positions and still cannot get anything from the Attack knob. I even put both the Sustain and Level knobs at max and then strummed a chord with the Attack knob at the lowest possible and then put the Attack knob at max and hit the same chord with same strumming intensity and got nothing. Is this normal, or could I be doing something wrong, could it be something defective with this pedal? It just seems like the Attack knob does not make any perceivable difference at all. For people that have experience with this pedal, I would really appreciate some help on this!