Was excited to get a 128gb Iphone 6. Could finally ditch the IPod Classic, and put all my music (9900 songs) on my phone. Can't get iTunes to sync. It stalls out on step 6 of 6 with the message "waiting for changes to be applied." Called Apple support, and was told ITunes was running slow because of increased traffic, and that with my large music library, it would just take time to sync. Tried running ITunes for 3 hours before giving up this last time. Not sure what to do.