I had one for a little while. It was pretty fun, and the looper was good times. It'll make these neat percussive sounds on some settings. I got rid of it because I couldn't figure out any live application, and without midi, synching it up to things was a pain.
If you're curious, one of the songs on my myspace page ("Eddy's in the Space-Time Continuum") features the slicer prominently on the bass. You can hear it soloed in the beginning.
http://www.myspace.com/jumbotronic