Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor, at best

First the good points: the scanner does actually work, and doesn't cost much.The negatives, however, are many. The driver is slow, performing a length recalibration before every scan. There isn't a WIA driver available, only TWAIN, so stuff like the Windows 'scan now' context menu item just don't work. The provided 'Scan Toolbox' software is ugly, slow, and horrible to use if you're scanning more than a few documents. The front panel buttons break easily. There is no on/off switch, so when the unreliable software hangs you have to physically disconnect it from the power and then plug it back in.All in all, not a great purchase.