So I ended up purchasing the 420mm version due to the low price and I can say it does indeed cool very well. With the pump set to 60% and fans set to 50% temps max out at 68c while running an encode on my 7800X3D.
I can definitely confirm the AMD mounting is terrible as GN pointed out. In fact it might be the worst mounting system I've ever used and that's considering I used to have a tuniq tower extreme back in the day that would tear your hand to shreds in order to mount it. 90% of the installation time of this cooler is holding the leafspring down and hopping the screw on the other side doesn't pop out. You can't mount it by slowly walking in each side by alternating screws (as you should do with any other cooler to ensure even distribution of paste), this will almost always result in one side or the other popping out with this mounting system. Also I don't recommend conductive paste at all with this one as the seasawing that occurs due to the leafspring during the installation can cause paste to pump out and down the side of the CPU.
Other than that included accessories are extremely barebones and no manual is included (online only). The mounting gear is not of the highest quality and the radiator I recieved did have some bent fins out of the box. Also a very tiny nitpick but a triangle shaped box is a terrible idea, pita to store.
Overall my early impressions would be a 9/10. Top tier performance at an unbeatable price. That said, whoever cooked the mounting system should not be allowed to cook anymore.