I have a powered toaster. I've used it with a pair of DXR10s and while it sounds good, to me, it doesn't sound great. I switched to using the Kemper with an oversized 1x12 Creamback closed-back cabinet. This setup sounds incredible - far more like I expect an amp to sound. However, pretty much every profile sounds like some flavor of a Marshall. That's cool....but for a majority of our band's classic rock songs, a blackface sound would probably be more appropriate. Over the weekend, I bought my friend's 2x12 Avatar open-back cabinet with a G12 and a G12H. With this new cabinet, my profiles now sound mostly like a Fender. I'm sure some of you will say "duh" but I'm astounded about how much of the tone is really the cabinet and not the amp. It's not that I'm saying profiles don't matter but they don't seem to matter as much as the cabinet.
Of course, I'm sure this is where Kemper is going with the Kone and Kabinet.
Anyway, not a complaint...mostly an observation.