I'm kind of late to the modeling party, and what's worked for me in appreciating them is to be sort of caveman about it. I plugged in with a general idea of what kind of tone I wanted and whatever knowledge I've accumulated about how compression and EQ works and what kind of feel I like...and started twisting knobs. If you don't think too much about the technology inside while you're twisting knobs it can free you up to listen to the results and adjust further according to what you hear. I got a bass tone I liked right away doing that, and a clean guitar tone, and a lap steel tone. A couple months later, I still like those tones (with a few subsequent and minor EQ adjustments) so it's not just gear-honeymoon. But this is not to say modeling is where it's at and tube amps are stupid. They're all tools; I chose this one because it was a way I could afford to get a compact do-it-all box that sounded good to me. It doesn't have a cool warming-up smell, though...I miss that about the tube amps I used to have.