Hi OhG,
I was thinking nearly the same thing as you on my first try with the Kemper for the distorded tones. I have it since 6 months. I play mainly with headphones because I love it loud and my wife have some disease so I don't kinda have the choice and it was really fine with me anyway.
For now, I really thought to buy a second Kemper, JUST IN CASE mine just broke. Everyday when I turn it on and the booting process was achieve, the sound I hear is litterally like a drug for my brain.
So I think and hope you will go through the same feelings as time passed by. I mainly play with the Reign In Blood profile (free) from Daniel Waldmann.
(Kemper stereo output to mixer, mixer to an analog amp like a stereo receiver and headphones into that amp. Mod effect on Stereo Loop and 3 Stereo Strymon (bluesky, elCapistan, Ola) and damn it sound good.)
Give us some news.
Regards