I'm definitely no expert when it comes to effects pedals so i'll do my best to review this one. The unit itself is made of good quality plastic and will probably take all but the hardest of stompers. It's simple to install and the battery is easy enough to fit. The sound is a good gritty aggressive version of the clean sound. It's harsh enough with the knobs at about 1/2 way but then goes a bit far. Maybe it's my amp that needs upgrading but either way it seems to lose sound quality beyond 1/2 way. Still a great pedal and I would recommend it as a first pedal for a dirty sound.