Mine seems slow, i Have to update manually sometimes. Also when switching from video to camera kept freezing on me a few times and wouldnt even record when the rec button was pressed
Sent from my SGH-T999 using xda app-developers app
According to T-Mobile the update brings
Multi-Window
Auto-pairing via NFC
enhanced Camera options
Sound Balance
Paper Artist
Samsung Gallery
Blocking Mode
Easy Mode
And in tmonews it says it brings
Group play
New 4g logo
Sent from my SGH-T989 using xda app-developers app