Yep... that's about my take on things, too. Only high quality conversions of other factory style are really worth a damn.

I can count the number of really good user styles I have heard on one hand. On the thumbs of one hand, maybe!

Sure, there are SMF's of songs that have been converted into 'songstyles', and some of them can get good (as the SMF was, anyway!) but personally, I'd rather use an SMF, and gain the better voice leading in that case.

The rest? Well there's an art and a skill in being able to emulate every instrument well, and most user style creators ain't got them!
_________________________
An arranger is just a tool. What matters is what you build with it..!