I just received my new Mad Prof. sky-blue OD. Quick review: This pedal is fantastic. I already have a LGW, Dyna-red, and EGDM. This sky blue is my fave of the bunch already. It can be dialed in similar to the EGDM, but has more gain and can also be more modern sounding than the EGDM. It actually has characteristics of the other BJF/MP dirt boxes all sort of rolled in one. It has lots of gain and can cut a little like the Dyna-red, but has some of the compression aspects of the Emerald green if you want it. It also can capture the low-mid character of some LGW settings, and can be smooth sounding like the LGW. Those 4 knobs make for lots of variations. Like the Honey Bee and EGDM, this pedal is very natural and sounds like amp gain, there is no cloudy top or note-separate-from-the-dirt feel of most overdrive/distortion pedals. Very nice little box! By the way, I am running this into a carr vincent amp, with my anderson T, M series pick-ups.