I've done some testing on a Z00UD (not daily) and found some issues.
- Horrible choppiness when pulling down notification panel after sone time, fixed by a reboot but returns after some time.
- Some animations lag, such as app to recents switcher.
- Scrolling lag when there are a lot of items on screen, in lists (sometimes) and in the notification panel.
Most of the above can be spotted by enabling Profile GPU rendering in the developer options, seen as large spikes.
The rest of the ROM is fluid and battery backup is good (light usage).
- Horrible choppiness when pulling down notification panel after sone time, fixed by a reboot but returns after some time.
- Some animations lag, such as app to recents switcher.
- Scrolling lag when there are a lot of items on screen, in lists (sometimes) and in the notification panel.
Most of the above can be spotted by enabling Profile GPU rendering in the developer options, seen as large spikes.
The rest of the ROM is fluid and battery backup is good (light usage).