Summary: I use this scanner at work with acrobat for document packets of 5 to 1,000 sheets. I'm saving an unbelievable amount of time, and my physical files are 1/10 the size they used to be so saving a lot of space in the office. I chose the 5460 because it has a claimed speed of 60ppm 200dpiBW.
Summary: This unit runs fast, until you turn the resolution up. And then it's as slow as other, less expensive ones. Unfortunately this unit uses USB 2.0 as its I/O. Modern units use the faster gigabit ethernet or USB 3.0 which both have higher bandwidth.