Yes, I always have found it hilarous when people try to explain away the horrible QC SLO model by saying it is "accurate" but only blows because the amp they modeled is the thing that "sucks"...
i.e. rather than BAD licensed version (in the plug), the model is lame because it is accurate to the OG Hand Built by Mike Soldano himself SLO, with the Mythical DeYoung transformers, mill-spec components, and all... You know the one that is one of the most iconic and legendary amplifiers ever made and has fueled the Soldano mystique for decades? Yeah that one: It's horrible.
LOL.
Theory A: Digital model is highly accurate but sounds terrible because because the analog amp it emulates, in actuality, sucks
Theory B: Digital model is poor rendition of a great analog amp.
I'm guessing B