I bought this pedal to use in front of a solid state amp for a death metal band. The amp i was using wasn't capable of high gain in the slightest and this pedal added more than enough to play death metal.
You have EQ, gain, volume and a boost. Weirdly, the boost seems to affect the tone, but as I always had the boost on for a little extra volume with the gain set around 50%, it wasn't really an issue for me but is something to consider if you plan on using the boost for solos - it will change your tone.
Everything feels nice and solid, it's got a metal housing, the knobs are chunky and solid and turn smoothly and the footswitches have a nice solid click to them. The only problem I encountered is that for some reason I can't quite fit a 9V battery through the battery door as the opening isn't quite big enough. Since the back plate has screws that can be undone I just removed that and swapped the battery out that way, but if you use a power supply its not an issue. All in all, a nice pedal.