Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best sound quality/durability of any portable I've owned

The Nike Sport ACT300 is built by Philips for Nike. I've found this a pretty tough and excellent sounding portable. So tough I brought it to Iraq with me and used it throughout my year-long stay there.Drawbacks? There are a few. The battery life is terrible and the lack of AM/FM is something that I wish would be remedied. The absolute worst drawback is the difficulty in placing and extracting the AA batteries. Terrible, especially considering the thought put into the rest of the design.On the positive side sound quality is excellent for a portable cd player, the anti-skip works well and it gives the user several options such as repeat and shuffle. The Nike's build quality is also of a much higher standard then even most "sports walkman" players.I highly recommend the Nike ATC300.