This is a pertinent post for me - finally made the switch to kemper after some years of using a fender supersonic or a boogie mkv - i love the amps, but wanted to avoid back pain...
Using 112 headrush, and i suppose trying to replicate an amp stage setup. Loving the amp models, and enjoying the complete lack of noise/static/interference, but hating the headrush rn. Gigged last night with a vox212 cab, and was startled by how much better it felt to play - a placebo i am sure, but nonetheless a much easier gig. Now in a quandry (these first world problems will be end of me!). I guess i need to keep playing about with setup, but its certainly a steep learning curve!