After about 1 day of usage, here's how I feel about the phone:
1. RAM Management on MIUI 9 is not as good as I wanted it to be on, esp on a 6GB phone. Just normal apps closing down after some time, no games at all. Always had 2-3gb ram not utilized. I think MIUI 10 / MIUI EU will fix this. Or else I wait until LineageOS
2. Loving the IR Blaster, now dont need to take the aircon remote from the other side of the room


3. Notifications with the app logo quite nice, its a change from the normal android noti
4. Full screen gestures are intuitive but the recent button feels much slower with full screen gestures. Found myself swiping up on my older phone.
I think I will be switching to the MIUI EU rom sooner than expected, just because I want my apps to not reload so often. That was the main reason why I waited so long to buy the 6gb version one.
So those who want the 6/128GB for the RAM, dont get your hopes too high unless you flash to MIUI 10 / MIUI EU, which has better ram management.