Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great features but, too many interface problems

It worked OK for a couple weeks and then it stopped being recognized by the computer which means you cannot load anymore songs. After trying everything on the Creative FAQ about the problem on three different computers here at home, I gave up and returned this item. From reading other blogs and reviews, this seems to be a recurring problem. This unit also does not work with Napster.