Regarding the idea that the "Kemper would allow you to have a consistent sound between live and studio" I believe it's a myth. I asked about this several times in this forum and it just doesn't seem to be the way it works, even if it was one of the biggest selling points for me, too. You need to adjust your profiles to the FOH of each venue - and that's why it's good that you can tweak them so much.
There are no analog/digital peace of gear that would magically adapt to every situation its thrown in. You always have to adjust volume/eq/sometimes even more to get the best sound.