I bought this unit new and its in excellent condition.  This unit is hard to find and is way more than a guitar preamp.

First off this is 2 channels, you can run 2 instruments or vocals at the same time or 2 separate signal chains from 1 instrument at the same time. This unit has the Line 6 guitar and bass emulations and a ton of FX and it also has their console/preamp modelling which is great for vocals and acoustic instruments.