Summary: I used to own the M-12 Plus and loved it, but they are not making Win 8 drivers for that. So I bought the S400. I find it to be better quality than the M12 Plus, so it should provide years of flawless performance. The software package that comes with it is great for a traveller like me.
Summary: This Plustek Scanner replaced an old Neat Receipts scanner of the same style. It is at least twice as fast, has no issues with the image being off-register and reproduces images reasonably well. For design work it is way under par, but for document scans it's more than adequate.
Excerpt: I have multiple scanners/printers - this was the smartest purchase; very convenient and affordable. The scanner coes with a sleek bag and it fits within my backpack for mobility. I usually take this with me when I travel. You can scan multiple pdfs or image scans.
Pros: Easy To Set Up, Excellent Software, Good Bit Depth, Good Resolution, Widely Compatible
Summary: in meiner Arbeit als Sozialpsychiater mit vielen Ambulanzen, Hausbesuchen und Konsiliarbesuchen habe ich diesen mobilen Scanner seit vielen Jahren mit , da mein laufendes Gerät identer Type nach 2 Jahren täglicher Nutzung Probleme machte, habe ich mir dasslebe Model wieder bestellt.