Summary: I just purchased the scanner as a replacement for an old Visioneer scanner that served me well until we replaced our computer which came with the Vista operating system. We had to upgrade the scanner and after reading many of the reviews went with the Canoscan 8600f.
Summary: Be careful with this unit, as Canon does not provide a Windows 8 Driver. So, when you have to replace your computer, better plan to replace this scanner as well. I have one, it works well, but frankly its only a couple of years old and to not provide a driver is poor customer service.
Summary: 45 seconds for 1 page 300 dpi BW scan is a lot even taking into account age of pc! (1.6 Mhz,256 Ram). I timed a dozen scans, defragged disk, bypassed USB hub, nothing worked. Initial scan is 70 seconds while it calibrates.
Pros: well built--judging from reviews, works well on more recent operating systems (adobe photo 4.0 with XP probably more efficient).
Cons: Returned it. The adobe photo 4.0 bundled is not compatible with windows 2k so be careful, you'll end up with default alternative software. Installation of bundled software slowed my pc way down even when not scanning. Was like having one of those "clumsy" antivirus systems that turns your pc to m...
Summary: Installed on Windows 2k with 1.6 Mhz processor and 256k ram. Whole PC seemed to slow down with software. Defrag, plugging USB2 direct to machine instead of hub, nothing worked to increase speed. Will probably need to RMA.
Pros: well built, solid.
Cons: how about 45 seconds for 300 dpi b&W PDF? You wanna get old doing your documents?