I love every possible aspect of this pedal in terms of sound. It allows recreating glassy Blackface and more mid-forward Brownface fender sounds at different levels of gain. With my Revv D20 it sounds epic. The pedal stacks very well with other low-mid gain overdrive pedals, giving a bit of hair to the sound.
As a plus, this pedal is handmade in Europe.
Cons: the pedal has a VERY bright white led + no white markings on the knobs (which are black, see the picture), so essentially you have to block the led with your hand in order to be able to read the values of the knobs when the pedal is on. Very irritating, especially at this price point.