This is an awesome tool for writing songs, trying out hundreds of new tunings which you can set yourself very easily even without a computer hooked up. Live it's a godsend for any weird sounding guitars.
The Variax 600 offers an entire guitar collection in a single instrument. Variax combines Line 6's exclusive modeling technology, with a comfort-contoured Basswood guitar, to accurately reproduce the sounds of classic 6 and 12 string guitars plus other fretted favorites. All of the sounds are accessible with just one knob and the 5-way pickup selector.
The Variax 700 Electric-Acoustic is mostly a solidbody guitar 22 fret, with a small sound-hole that gives it pretty nice sound when played acoustically... Its got a great sound from either acoustically playing or the amp.