Sound — 9
I'm using it with an Epiphone Explorer (gothic version) with an EMG 85 and an 81 played through some 20 year old Marshall I bought from a jamaican guy. Sounds crunchy, the good crunchy, good crunchy like cereal. It takes over the main sound of the guitar, but the EMGs make it a different tone to other guitars. the sounds great, to use it clean you can just adjust the settings on your amp (make sure to turn the gain on your amp to 0 and/or Switch to a clean setting, otherwise it'll sound like garbage and when using low tunings, sound a bit like a grumbling van engine). With enough fiddling you can create the same sound as Slayer did with the Reign In Blood album. a friend ran it through the same amp on a Jackson, Played the entirity of Raining blood to utter perfection, sounding exactly like the recording (another guy was on the drums too, also playing flawlessly). it's really not hard to find good sounds with this.
Overall Impression — 9
I play anything, literally anything, that sounds great to me. And for the most part, it can't get any better. You can even sound like the sort of layered guitar sound that Jim Root made on Slipknots self titled album. Or you can make (as mentioned) a sound similar or the same as Reign In Blood. it's great for any metal, perhaps not so much Iron Maiden or Judas Priest. What I love is well, It as itself, the idea, name, and the actual pedal (enter laughing smiley) and there isnt really anything I don't like, apart from the faffing around with the amp settings and such. I wouldn't really compare it to anything because I haven't tried much else, but this'll do me for now.
Reliability & Durability — 10
Being made of metal, it's harder than anything, but gets scratched still. I'd probably never need backup unless I threw it away for whatever reason. The only real fault is in the batteries, and if you're careless enough to leave the cable into the jack, lose their power quickley, like active pickups.
Ease of Use — 8
Simple enough to use, 4 knobs for great versitality and for finding the tone for you, just press down on it to let the haze flow. It might become a pain when put through an amp with pre-made settings like a Line 6 Spider II (clean, rock, metal, insane and whatnot) because it messes around with the sound and makes a humming noise. But it's generally as easy as pie (and pie is easy, apprently).