Just to give credit where credit is due: SilverFast AI is professional scanning software, which has a large feature set and powerful interface that requires some education to get the most out of. For those who understand it, it is a fine and afaik unparallelled professional scanning application. VueScan is also excellent for what it is: intermediate scanning software for those who don't want or don't need many features, or don't know how to use them and don't want to take the time to learn, but rather intend to do all or most of the tweaking in Photoshop. It is very good for that level of user, but is very limited in comparison with SilverFast.