Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Solid phone and feature

If the primary reason you buy a cell phone is to use it as a cell phone (and not for photos, mp3s, text messaging),then this is a rock-solid phone. The operating system and user interface are both good and operate well, the user interface in particular is very user-friendly and intuitive. The photos are fine. It has bluetooth.I dropped it many times, but it still worked fine. Plus it looks very slick too, many people have commented on its cool appearance.The one downside for me is that the phone is a bit heavy. It's not a thin and light Razr.