I may be one of the few here who currently own a Kemper Power Rack, an FM9T, AND a Fender TMP (not to mention way too many actual stompbox pedals and tube amps). Only to mean, I speak from experience of currently owning the actual equipment, here and now.
Suffice to say, the TMP holds its own...easily, at least where it comes to the bread n' butter core amp tones/dynamics as well as effects. In other words, it probably should satisfy 90% of the working guitarists out there.
With that said, there is no question that Fractal and Kemper have a significant advantage in terms of breath of effects available, as well as the fine-grain, sometimes esoteric, deep editing and customization of amp and effects parameters. If you want the depth of programming and tweakability of a Lexicon PCM-80, then get a Fractal.
If, however, you want the familiar ease, almost zero learning curve, and insanely brilliant and intuitive customization possibilities -- AS IF ONE WERE USING an actual physical stompbox pedalboard and tube amp setup -- then one would be well served by the Fender TMP. In fact, in the latter case, there is CURRENTLY NO BETTER solution, than the Fender TMP, IMHO.
