Having upgraded, at substantial cost, to SilverFast Ai Studio 8 I am appalled to find how bad this "new and improved" version is.
I'll confine my remarks and questions to the use of SF for scanning negatives using a Nikon 8000 film scanner.
1) Where is the documentation? How can you sell a complex program like SF without adequate information and explanation of how to use it. Despite the constant repetition of the word "intuitive" in the LaserSoft videos SilverFast is anything but intuitive, and version 8 less so than its predecessor! For example, since when does "batch scan" not mean what it does in every other scanning program? And ADF (Automatische Dokumentenzufuhr)? How intuitive is that? Not at all in English and perhaps not auf Deutsch either. In addition the various videos and "help" links all refer to Ver. 6.6, and are, consequently, almost useless. So is the Quick Guide since it is concerned mostly, if not totally, with the use of of SF with a flatbed scanner.
2. The following is an exchange regarding prescans with Ver. 6.6
From a User: "One thing present in Nikonscan I'd like to see in Silverfast is a prescan of all the pictures than after individual corrections, the possibility to launch a batch. If Nikonscan does, why not Silverfast."
From LaserSoft: "Simply because Nikon Scanners make that especially hard to do and only Nikon knows exactly how

As we left the "help" of the Nikon Drivers we have to find out all by ourselves now but in turn we can work more stable on Leopard & intel."
That was Leopard, this is Lion! "Hard to do"? Perhaps, but I know,as do many others, a program that does it - and has always done it! ( For some reason the name of this scanning program is written always with asterisks - like G*D. Is it forbidden to mention the name?)
3. Please do something with the JobManager that makes it both easier and more comprehensible to use, not to mention useful. Ver 6.6 was pretty good - Ver 8 is almost not worth bothering with. Ditto for Overview. Maybe with proper documentation they could be understood.
4. I scan B/W negatives as raw files ("HDR"). SilverFast saves them in TIFF format. Why are they not saved in a non-destructable format, e.g. DNG? And why do that? Well, the raw file is equivalent to a negative: it has all the information. and that cannot be changed other than by taking a knife to it! Obviously if the raw file is a TIFF, the image can be edited and then the original scan can be overwritten, however accidentally, and thus destroyed. And why use the acronym, HDR, when its meaning is generally understood to refer to a different form of high dynamic range image? In addition, the scanning program that cannot be named provides the capability for simultaneously capturing both a raw file (.dng) and a TIFF file that contains edits!
Enough for now.