Just got One UI 8 beta though with September Security patch. Very nice. 
Only noticed minor changes but looks good, so far. Sadly I think the usb port is on the way out, so might be forced to upgrade soon. Would be a shame, otherwise there's nothing wrong with the device.

Only noticed minor changes but looks good, so far. Sadly I think the usb port is on the way out, so might be forced to upgrade soon. Would be a shame, otherwise there's nothing wrong with the device.