I've been writing and recording an album for release this coming December and I've pretty much relied on the Kemper the whole time. It's such a great recording tool! If you're interested in the sounds, here's a link to one of the not quite finished tracks!
http://www.youtube.com/watch?v=rN_qU8vQn9s
I used a Bognor Xtacy/Tri-amp and Modded Marshall TSL profile, and possibly some more that I've currently forgotten about