Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pretty darn good scanner

After extensive research, this was the scanner for me. I had to fuss around with its settings to get it to scan books, which isn't obvious how to do at first. Compared to the scanners I use at work, this one is fast. I can scan about 100-150 pages in an hour, including the time it takes to save the page as part of a pdf file. It's slower if you don't have USB 2.0 ports. It works great with OCR text recognition. It's slim and light, and with just one cord, it's a good space-saver. The color scanning of pictures makes the colors looks a little duller than the original print versions, but the images are crisp and clear on screen.