The Mosfet V6 stompbox is the little brother of the all tube stereo V6. It is the V6 mono solid state version. With it, you enter the magic world of the polyphonic distortion. It has 6 voices, 6 distortions, one per string. It allows you to play chords and hear each voice quite clearly with the hexaphonic V6 pick up.
It can drive synths through a midi interface. It has a separate SRV type bluesy overdrive which gives you a long sustain solo sound (Hello, Holdsworth !) when mixed with the polydisto.