I will be satisfied when seamless scrolling returns and stuttering goes away. 8.3 improved things but did not fully eliminate the stuttering.
Dunno though if iOS 8 is to blame or the stuttering is app related. Curiously enough a couple of new apps that did not exist prior to 2015 scroll perfectly (even with heavy artwork). May be apps needs to be fully rewritten for iOS 8 specifically.
I've lost Touch ID biometric functionality upon installing iOS 8.3 on my IPad Air 2. Touch ID is not working in App Store any longer, and it now only prompts me to enter password.
Disable touch id for app store, reboot, turn it back on.
With 8.3, when sharing items to friends on WeChat or posting to Moments, the regular command box is prompted, but when pressing "send to friend," the supposed prompt of going to WeChat would not happened. This is an upgrade to 8.3 induced problem for sure cuz my 8.2 iPad works normally when doing the same
I'm personally very satisfied with it. The only bug I've encountered is some frame rate decrease when rearranging icons on the home screen.
Everything else is quick and smooth.