Before the update I could stream music from the internet to Sync reliably(per a data connections reliability). Also before the update, I could not reliably stream any music stored on the phone, my music library or the Nokia app that stored the music offline; this behavior showed itself by randomly disconnecting the music portion of the phone from sync, seemingly more when I tried to skip tracks or the next track naturally came up.
After the update I have tried to play music from the nokia app streaming from the internet and locally from my music library and there are audible pauses every couple seconds with both sources, however, now I have been able to mash the next button without the phone disconnecting. So overall this update is worse because now I can not listen to any music via the phone.
On the note of any music via the phone; before the update I could connect via USB and the phone would index and play some music. This experience was not enjoyable because it would not search through the phone for the songs I wanted reliably at all. Also the index process took 10 minutes and seemed to want to do this each time I would connect or start my car.
After the update: the phone does not seem to get recognized at all as connected via USB. I will update if this changes in the next few days.