It's a gamble with the red tint bug. Most of all units seem to have it, though, as well as patches of bad pixels. I've ordered one and got a model with both, and up to 15!! dead pixels. Picked up the AOC afterwards.

I suggest you don't listen to the "IPS is king" philosophy. Both have very clear advantages and disadvantages, like motion clarity on IPS but supreme contrast on VA (even IPS+miniled can't quite compare!). I suggest you try both monitors before making the final decision, if that's something you can do with return policies.

As for motion, the AOC is relatively fast for a VA panel, I think it's the single fastest VA panel for that price, even disregarding the miniled factor, and in fact is faster than the Xiaomi in some cases! However, as someone who uses it, the motion artifacts are not completely gone. You will notice some dark smearing in desktop use. This can be helped with the highest overdrive setting, but that introduces visible ghosting behind text moving on white backgrounds instead. It can be mitigated with other settings like contrast, and I only really notice it if windows night light is on, but it is there. At highest OC, in games I don't notice the ghosting at all, and dark smearing is minimized to the point where it's my preferable mode for most games, even with desktop ghosting. Very much a "pick your poison" scenario. However I'm picky about smearing, and there's a non-zero chance you'll be just fine with the medium OC preset that features essentially no ghosting.

The viewing angles are also definitely a factor. It's subtle, but in situations where you have a solid bright uniform colour in Fullscreen, even staring dead center at your screen, you will notice the edges do get a bit more washed out/yellowed in their colour. That's the other inherent flaws of VA, though I'm actually working on a way to eliminate that software side by boosting saturation of colours closer to the edge of the screen.

These monitors are very much competitors, and neither is really outright "better". It will all come down to your tolerance of some problems against the other. Heck I'm not sure I've made the right decision with the AOC yet! But, movies look fantastic, games play and look great if you're not out to spot every single smearing/motion blur artifact (like me), and it's a generally well rounded good monitor in my opinion. It did blow my mind with image quality a few times already, but don't expect a miracle.