Very good value for money! It is said to be a TubeScreamer clone but I haven't used both with the same gear to say it. But it is more practical for sure as it has a great feature: the emulated output. Did your amp stopped working while in a gig? Just plug the pedal into the PA! Tired of recording with amps, mics etc? Plug it into your audio interface!
It sounds great it it definitely worths its money! The only thing I would like it to have is a 3-band eq with the addition of a "mid" knob. So, I will rate it with a 9.