Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Why Only 4 Stars if I Love It?

I've used mine for about a year and a half now and love it. It reminds me to do things. It provides me with lots of music to listen to, of books to listen to, and even books to read, long before the the Amazon product was released. Recently I even paired it with the Jensen Bluetooth receiver and am able to play the contents of the TX over my stereo. I use it for writing emails that I then send later from my pc.So why only four stars?1. The battery life isn't great and the battery is a built in rechargeable, so it's necessary to charge it every couple of days.2. The display, while gorgeous in indoor and subdued lighting, struggles to compete outdoors, making it hard to read an ebook outside.3. I wish it had a microphone built in for taking little audio memos.