ZenUI 6 looks very appealing and I can see they have improved a lot with it, but the sad thing is that hey have almost abandoned Zenfone 5Z users. They give security updates every month. However, each new update seems to bring bugs of its own adding to the previous bugs. At least they are listening to the Zenfone 6 users, but aren't listening to the last zen users and haven't added any features, designs or improvement which were requested since a year.