The different timbres and tones you can get out of this unit are fair, but in the end, I find almost all distortion thats added on sounds fatiguing and cheap. The cleaner tones can be quite useful tho. i have owned the v-amp 2 (same processor) since its release and have gotten quite disgusted by it.
The lack of realistic and 'round' tone (that you would find in a real tube amp) is disappointing.
YMMV...