Randall-Cab "Mic-eliminator"-output?!?

I wouldn't count on it sounding impressive ;) Probably like a sansamp or maybe palmer pdi with speaker sim.
 
Yeah, experience (both my own and reading other people's) has taught me that any cab/mic "simulation" is just meant to be a compromise for convenience (especially live), not a genuine substitute for a mic
 
the palmer/motherload ones are pretty impressive, but impulses go further than that.
 
On the candlemass tour their FOH guy (who is honestly the best I've ever witnessed) used the cheap berringer model and mixed it with the mic'd sound. It sounded great.