I have updated my m3 note to latest beta version and facing some issue mentioned below-
1-Camera speed and quality was good before this.
2-Battery draining fast as compared to stable A version.
3-Gallery and some other system app opening time encreases.
4-Aftet updating this version first time I faced lag in ui.
5-GPS is not working good.
6-Contact pics showing black some time.
Please check these issue.