First hour of playing with the update, everything seems pretty smooth. Scrolling especially.
Device is still warm, but that's expected with the optimization and updating going on behind the scenes.
GooglePay is going to be a write off for the time being, until root and modules are a bit more optimized. The update does seem to break it more consistently, so reproducing the error will at least be easier.
All apps still seem to work.
I went from a g5300n radio to the bundled g5300g radio. I had been using the QPR2.1 radio with the stable builds for better reception. Took about 1-2 minutes for g5300g to lock on to 5G, but since then has had stable signal.
Notable bugs:
1. Central clock widget time is NOT centered.
2. Device battery widget will not show % or name when shrunk under a certain size
3. LSPOSED menu is BROKEN