I bought mine on July 11th and have replaced it four times, going on five this week, so they will let you exchange it if there is an issue with it.
The List:
1) bought on the 11th, replaced a week later because cracks developed
2) cracks and network connection issues
3) major scratching that was not user related right out of the small white box
4) received on the same day as #3, went back because of cracks & scratches right out of the box
5) my current one, cannot connect to any WiFi network no matter what troubleshooting I've tried; my guess is a faulty/defective chip
When will it end..............................(Black 16GB, fyi)