Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Electronic Purchase Ever

These have got to be the worst electronics I've ever purchased. I bought two of these and they both have the same problems - really really flaky menu support. If you hit the menu button, sometimes it goes to the menu, and sometimes it just sits there grinding the disc and stops.Get into a menu and hit enter to choose an item, sometimes it just comes right back to the same place. Hit again and it may or may not work. Hit a third time and it may finally work if it feels like it.The menuing support is clearly extremely problematic and flaky.