Some additional features would be useful.
e.g. those of attribute changer https://www.petges.lu/ modifies metadata between source and destination without changing the underlying identical files.
e.g. personally find winmerge and winscp a simpler solution to some aspects of comparison and synchronisation (but need setup)
Overall I do use Opus regularly but largely to just get a count of the contents of a directory (avoiding a manual file propperties right click on the folder.)
I appreciate the software development costs, but £25 for a single node locked license is steep. I'd like to see that extended to at least a couple of PCs + a laptop as many advanced users (who can regex :) ) are likely to have at least a couple of PCs round the house in these work from home days.
Overall 3.5 out of five - undeniably powerful but interface is too fussy