Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a good buy

The device itself works fine, and was happy with that. The Zune software, however, is not so good. It will go through and re-classify all your mp3 files without your permission. There is a way to disable this, however it forced me to upgrade my zune software, then went out and changed all my files again. I called Microsoft Zune support, and got routed to someone that barley spoke English, and dropped my call. Ended up returning the device, will look at getting an iPod. Is fine if you don't have many mp3's already, but if you do, be careful because will change how you have them saved on your PC.