My use case is to have a pedalboard equally fit for playing at home or outside, without pulling cables out and plugging them back in.
The Mooer Audiofile comes last in my chain, after a Boss RC-3 looper, that combines the (mono) preamped and cabsimed guitar signal with the (stereo) backing track via aux in.
I'm using a EBS ICY-30 Y-Insert Flat Cable cable to connect the stereo-out of the looper to the stereo-in of the Audiofile.
The Audiofile drives the headphones nicely and doesn't get in the way when connecting to a real amp, so it does the job nicely.
Not a fan of lever switches (they feel flimsy in general, although they haven't failed as yet), I'd prefer slide switches.
Very much a fan of the metallic knob though, feels great.