1. Split screen Awesome|
2. Audio feature improved and awesome
3. Performance super
4. After MIUI 9 updating I'm feeling good after long time.
5. Battery issue:
1. Battery charging notification not there in task manager
2. Quick charge facility not there taking to much time to charge fully compared to MIUI 8.
3. Battery draining to fast compared to MIUI 8.6. All cores are not running still.
7. Display and touch issues fixed and working fine.
8. Few features are not added in update like quick reply on notification, bundle notification, smart assistants, smart app launcher, and MIUI lab. This features created the great expectations among users but after update everyone got disappointed.
9. Need to improve the battery related issues as soon as possible.