I have been using this software for several months and it is stable and overall very easy to use. I would say that the interface is somewhat inefficient as one has to repetitively move the mouse back and forth all over the screen to perform tasks but this is a small thing most of the time. I would have liked it to run in OSX and hope that an update will be forthcoming. I suspect most OSX users would be willing to pay for this upgrade. It is intuitive especially with respect to colour balancing and in almost all cases one need not do more than learn by hands-on. One addition to the program that would be most welcome is the ability to multi-scan such as found in Vuescan so that the overall s/n could be increased by this means. I would rate the software as a five star as it is otherwise fine. Oh yes, it does support Sprintscan Plus scanners also.