Performance is excellent, tho it appears to me this scanner is slightly slower in doing operations at the same settings as those done by the GT For some reason under Win 7 pro on a Dell XPS desktop with 16 GB of main memory this scanner will refuse to scan documents much bigger than 5 x 7 inches at dpi, despite being rated at max of dpi. But it does dpi just fine for its full 12 x 18 inch[…]