1. Whether you are scanning a book from top to bottom or from left to right; since the surface of the left side generally (depending on the bond) is not plan to cut a portion of the Book from the right or distorted this because either no longer touch the rollers of the scanner the paper or the scanner surface itself.
2. On the right side of the book you also cuts off a portion of the text from the right, because we have reached with the rollers the edge of the book, but not yet the right margin of the text. I tried further to roll the scanner on an equal subject, but this is rather Frickelei and not particularly elegant.
3. Press the start and end of scanning is the same. Sometimes this does not respond to the start of what one finds at the end, if no file has been created. That's annoying. Why the scanner does not say the same, that it does not scan? For me it happened also that the scanner to scan too early (without that I would have pressed the button to exit) Abrach. I have not found this an appropriate explanation.
It may sound a bit negative, but I'm assuming that at least the points 1 and 2 are the weaknesses of all hand-held scanner of this type. Perhaps you can build the next generation a little differently.
Here, however, something positive:
1. Insert the CD with the OCR software could not read the CD-ROMs of my PCs. After I complained it was the next day before a mail with a link to download.
2. The scanning itself works - apart from those limitations - very good, and the result can be quite impressive.
3. The scanner is small, lightweight and portable. I can not say anything about the power consumption, but appears to be adequate.