Ahh, the boost pedal... So simple yet so useful. The 'Starshine' is a MOSfet based boost. Plenty of output. The "Glow/Shine" switch will add some warmth to the tone when switched to "Glow" and may also be useful when switching from humbuckers to single coils. The "Shine" setting is the straight signal through the circuit.
I really enjoy using the 'Starshine' to push my Blackheart Handsome Devil into some great sounding crunchy overdrive tones. With the knob at minimum you'll get a nice clean boost to your signal. Increase the level to really push your valve amp for some great sounds.