I've tried CQUI. It's buggy and it's advantages are in small, specific places. I don't care much for the "Civ V"-style city screen or whatever they call it. For one, it doesn't work properly for me because I can't buy tiles three to the east or three to the west. And sometimes I can't build anything at all because only half the window opens. I disabled it and just got used to the default interface, which is fine. There are things I miss, of course. I like the better tacks because I don't play with the keyboard near me, so I'm not going to type specific reminders. I like knowing the correct time for my trade routes. I like knowing my resources. I like knowing information about AI science and culture. And so on. But there are specific things with the mod that I don't care about and rather play without. Civ VI's build, gold, faith interface is actually fairly elegant aesthetically.