I have seen a lot of positive reviews of this pedal, mostly saying that it copies the revered ProCo Rat, only for less cash and taking up less space on the pedalboard. Just the job, I thought! but then, I received the pedal....indeed, it's small, and I didn't break the bank but its sound indeed reflected the price... and it just sounds bad: to my taste the pedal can only be used if all knobs are set more or less in neutral positions, like, say: from 11 o'clock to 2 o'clock. All the rest sounds fizzy, or too harsh or muffled. I am not even sure if it is just the wrong combination with my amplifier, Marshall Origin 20h and cab Celestion V30, cause I've seen a similar review of this pedal on YT and the guy had different gear but exactly the same conclusions. Also, the two knobs LEVEL and FILTER are so tiny that it's difficult to set them quickly to your liking (live situation), and see/remember the setting. I am afraid this is a clear example of: you get what you pay for. If you can afford sth better - stay away from black secret. If money's an issue - save up for sth better or get a second-hand better stuff.