I have other noise gates/ suppressors e.g. Boss, Artec, MXR, some of which offers more features. Fact is, I personally like simpler devices with minimal adjustments. This does the job that is expected. I cannot detect any tone alteration. The threshold knob basically works as a control for the reaction speed of the device.
I use it in a basic set up: single coil guitar (Tele or Strat), Boss Vintage Reverb, and Orange Micro Terror amp. Already at medium gain settings, the noise was far to high for my taste. I was not sure where to place a noise gate in this simple chain, as it should go after the distortion effect, before any delay (reverb). In my set up, distortion is produced by the the amp.
I just tried after the reverb effect, before the amp, and it works great. At medium gain setting, I set the threshold knob at 12 and any noise is cut as I stop playing.
I can only recommend it. Just consider it is very small (sort of cigarette pack size), so perhaps the best way to hold it to a pedal board is through plastic clips.