Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy one

It's not even worth pulling out your wallet. Results are about as good as trying to draw your photos with a very blunt crayon. I get far better results using a flatbed Epson with the film adapter. Not that using a flatbed is the best idea but it is 100 times better than the 1800u. If someone gives it to you consider them a mean person and don't take it. Unless you need a rather ugly 2lb piece of plastic to clutter up your desk and spill coffee on. Even then, there's probably something better to accidentally caffeinate .