Overall:I have had a couple other sustainer compression pedals and this one rocks! I heard other people say their pedals were noisy. So lets clear that up. Yes there are some noisy pedals that are cheap. But in my 39 years most noise issues come from bad placements of pedals in the chains, cheap cables people use, or even plugging the pedal in the same the wall socket as your amp or power strips. ALL of these things can effect noise. Try changing these things. Especially cheaper cables or mixing types of cables. Make sure they are all the same brand and of decent quality. Isolated power supplies also help reduce noise. Ok back to the pedal. Many BOSS pedals are made in Japan, Taiwan, and now Malaysia where this pedal is make and it is not making any noise except ... MoreOverall:I have had a couple other sustainer compression pedals and this one rocks! I heard other people say their pedals were noisy. So lets clear that up. Yes there are some noisy pedals that are cheap. But in my 39 years most noise issues come from bad placements of pedals in the chains, cheap cables people use, or even plugging the pedal in the same the wall socket as your amp or power strips. ALL of these things can effect noise. Try changing these things. Especially cheaper cables or mixing types of cables. Make sure they are all the same brand and of decent quality. Isolated power supplies also help reduce noise. Ok back to the pedal. Many BOSS pedals are made in Japan, Taiwan, and now Malaysia where this pedal is make and it is not making any noise except good compression and sustain the way its intended. This pedal like all BOSS pedals are built to last. I have 9 other BOSS pedals for nearly 24 years minimum and all still work like the day I got them. Just remember, everything doesn't need to be cranked. A good limit for a pedal like this is to not have the level or the sustain above 2 O Clock. Its the sweet spot. Its a great pedal for much less than many others of same or even worse quality.

I had on back-order from GC a similar device, not made by Boss - let's just say it was red and had two knobs. After waiting for six weeks my patience got the better of me; I canceled my order of the pedal and substituted the CS-3 instead. Am I ever glad I did! The addition of the tone and attack controls give a depth and variance to the sound. I have used this pedal not only with guitar, but with electric bass as well and the response is wonderful.Absolutely superb ringing sustain, while maintaining an "organic" tone quality, for lack of a better word. Dialing down the treble while upping the attack gives a presence that is a terrific improvement over the dry signal. I love this pedal, and am so very glad that my original choice in a compressor/sustainer ultimately ... MoreI had on back-order from GC a similar device, not made by Boss - let's just say it was red and had two knobs. After waiting for six weeks my patience got the better of me; I canceled my order of the pedal and substituted the CS-3 instead. Am I ever glad I did! The addition of the tone and attack controls give a depth and variance to the sound. I have used this pedal not only with guitar, but with electric bass as well and the response is wonderful.Absolutely superb ringing sustain, while maintaining an "organic" tone quality, for lack of a better word. Dialing down the treble while upping the attack gives a presence that is a terrific improvement over the dry signal. I love this pedal, and am so very glad that my original choice in a compressor/sustainer ultimately fell through. Do not hesitate to buy this device; you will be very glad you did!

Good compressor pedal, Boss is always high quality. Only thing I'd look out for is if you're getting an old/vintage one make sure to test out different voltages. a regular 9v adapter usually doesn't work and you should try the 12v or the 9v battery pack, worked great for me.