I bought this ISP based on the reviews I had seen online. When I recieved it I was first impressed with the build quality, and weight of the pedal. It couldn't be more simple to use. Just plug in, and adjust to your liking.
I use this in my as the first thing my guitar signal meets(after the tuner). I find the single knob is alot more effective than other noise reduction pedals that have a lot more knobs and dials. For this, it seems the term "less is more" couldn't be more true. I have even used it as a kill switch, by turning the setting all the way to the right, and quickly turned it back to a noise suppressor by turning it back again.
I can say as well, in comparison to other big brand noise suppressors, this one does not suck tone, as most people fear with these type of pedals. It is one of the best noise suppressors I have tried and cannot recommend it enough.