Instruct: Classify an Amazon review into positive or negative sentiment.
Query: very weird thing. poor software. stupid

1) Can't build a play list2) the "favortie song" list gets deleted every time you upload new songs3) Some of my songs just disappeared into the mp3 player. they are still in it, but I cannot find them in the file when I connect the sandisk to my computer. So, these songs are stuck in my sandisk forever... I'm tired of them.4) poor navigation. it's slow, and the screen is too dark. Not safe to navigate while driving.5) too bulky. Not good for working out with it.I just wanted something that worked. It worked, but... I wish I had saved the money for something better