I bought this pedal because it was cheap and because I had to solve some hiss issues from my setup.
It obviously worked and it didn't have many problems, even though the sensitivity potentiometer didn't seem to have much of an effect, at least with my setup.
However, if you need to mute the signal from your guitar while you're not playing, it will work. I wouldn't buy it again though, because my issues weren't due to the signal from my instrument. So, just pay attention to what is the real source of your problems before you buy this pedal