| I have one. I love the sound, and I also own an SWR and an Ampeg. It has power and headroom for days.
But, I've heard there have been a lot of quality control issues, and you should be aware that this is not part of GK's regular line. They're made exclusively for Guitar Center and their subsidiaries. They don't sound like other GK's, not quite as hi-fi.
FWIW I've toured extensively with mine and had no problems with reliability. | 
