Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great product!

As opposed to an earlier review, stating that it doesn't hold programming books, I'm using it with one right now, that is as big as any of the programming books I own, and it's working beautifully. I was trying to read the book flat and had to weight down pages to keep them from closing, not to mention the neck strain from working on the computer while reading a flat book. And you certainly can't beat it for the price, Simple, elegant, inexpensive and it folds flat. What more could you want?