You don't have to convince me. I'm in the same boat as you.Actually, he's right. I don't know how to make it work. I tried every parameter of every model, every cab, every effect, and failed to make it work for me. I had better luck with Blue Cat free sims. Strictly speaking software, Universal Audio is light years ahead. BIAS ain't bad either (including their effect models). None top Fractal. IMO.
The III and Reaper's ability to use multichannel tracks to record raw pickup and processed Axe within the same media items makes recording and reamping as easy as a plugin. I've stopped searching for amp plugins because I no longer need them with the III.