Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: poorly designed, not worth your money

As noted in other reviews, this product has *very* limited battery life. It didn't come with an AC power source. It also has no hold button, which means I have to take out the batteries when I'm not listening. also, it often can't pause, fast forward or reverse on cd's I've burned myself. Its lid closes so poorly it only plays cd's if I can hold it flat or press the lid down -- definitely not for working out. Overall, a purchase I regret making.