As most of you may know, every buffer is a unity gain amplifier that just acts like a frequency shifter. It does shift the resonant frequency roll off point that is created by the big low pass filter that is formed by the combination of any instrument pickup/cable/amp, but it does not affect the frequencies content or the tone of your gear. This means that on a long cable run all the high frequencies are well preserved despite the cable capacitance or pickup inductance.
Kuro BUFFER was made to accomplish all of that in a musical way, without sounding too hi-fi or coloring the sound. It does wake up your signal!