Sound — 8
I use the Bad Monkey purely with a humbucker-driven setup. My guitar is an Ibanez GSA60 and my amplifier is a Sound Drive SG-10. I use the Bad Monkey as a booster for my Beta Aivin HM-200 Heavy Metal distortion pedal, since I play mostly metal, neo-classical shred and experimental, though I also play a lot of rock. The tone is quite weak when the pedal is set to a trebly tone, but other than that, the tone is punchy and strong. As a booster, it shines by cleaning up my HM-200's tone a bit, yet making the volume louder and more middy. As a standalone, it shines when used to play pop-rock stuff like the Killers, Franz Ferdinand, etc, an even Radiohead, etc. It excels more as a mild Overdrive. The Bad Monkey, I'd say, is more of a Tubescreamer kinda overdrive/booster.
Overall Impression — 8
With the Bad Monkey, I boost metal leads, and as standalone, more as a mild Overdrive for the verses of rock songs. I play stuff ranging from contemporary Christian music to modern metal, and the Bad Monkey shines as a standalone Overdrive or a booster. A guitarist for close to 7 years, I know my playing style and I stick to it. If it were lost or stolen, I'd either get it again, or if a Boss SD-1 or Ibanez TS-7 comes up at a cheaper price, I'd get those since the three pedals sound quite similar (Tubescreamer kinda tone). I also like the fact that it has mixer output, and unlike most other Drive pedals, the gain level can be increased without the overall output level increasing as well. I wish, however, that it could have more of a personality than being DigiTech's answer to the Ibanez Tubescreamer.
Reliability & Durability — 10
Its made in the USA, so most would think it more reliable, but for me I don't care if it's made in the USA or China. A well-built pedal is a well-built pedal, no matter what the origin. The Bad Monkey does not disgrace it's origin. It is very well-built, tough, even though I bought it second hand.
Ease of Use — 10
Majority of tones that can come out of this thing are really nice. Personally, I use it as a mild Overdrive though it can go quite high in terms of gain level. I found my favourite tone quite easily. There are only four knobs - level, low, high and gain. So it's quite an easy to use pedal. Mine is made in the USA and no modifications, all stock so far.