I don't have the full-size King of Tone to compare this to, but the sound of this pedal is fantastic and can give you quite a large variety of tones, thanks to the mode toggle switch. I really like the small form factor, and the build quality is top notch. One thing I did note is that the output volume of the second mode is quite a lot louder than mode 1 and 3, so you'll need to compensate if you're switching modes (in fairness it is a boost mode!). I use this as a desktop style tweaking pedal with a range of instruments, guitars and synths, and it provides a nice range of crunch and saturation tones.