I have the Mi Mix 3.
Not really using it anymore as I've jumped ship, but it's a great phone; I love the full screen display, by way of the awesome slider mechanism.
Speakers are awful, though.
And the phone is widevine L3, which means no HD on Netflix and the like.
The pros outweigh the cons, though.
Phone is beautiful and feels great to hold.
And using it as a fidget device comes in handy, too.