Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buyer beware! Serious quality issues

The Ipaq has serious quality issues including dust under the screen (!!), problems with the stylus housing, and problems with some of the buttons. Compaq customer service also suffers, no doubt due to the back log of complaints on the Ipaqs already in the hands of consumers. My advice is simply not to buy one of these. Take a look at the Casio models instead. They're high-quality machines and beat the Ipaq in several areas, including screen quality, sound quality, and, most importantly, manufacturing quality....