Instruct: Classify Amazon reviews into positive or negative sentiment
Query: CD keeps skipping, after only 2 weeks of use -- Subpar SONY

This is a subpar Sony product. After only a week of use we found that it became "ultra sensitive" to people walking near it. It would stop playing the CD for a couple of seconds and then resume. After 2 weeks it got worse; this time when people walked near it (presumably caused by the vibrations of the floor), the player started skipping while playing as if the CD were defective. We were playing a high quality original recording CD when this happened but it happens with *all* our CDs now. Definitely returning this unit. Otherwise it looks good. Mega bass could use a lot of boosting as you can barely tell it's got any bass. Disappointed in Sony as this used to be there "bread & butter", i.e. portable players.