I really don't know were to start Scratches resistant, (WRONG) software problems, the cost of repairs, incompatibilities with every other Mp3. It seems every time I hook my fifth Generation up to my computer there's going to be something wrong, or needs to be up dated. I really truly wanted to love it, it goes back to the saying don't judged a book by its cover. You would think its great when truly its not. If you don't believe me go a head and buy one and when you do, buy all the warranty's that come with it you will need at less two years so now your 300 or 400 $ turned into five or six good luck