I've seen the photos of QS Batman on Facebook, and at the end of the day, no matter how much it looks more accurate or not, it still looks like it's a painted statue. As much as accuracies and proportions are good, the paint app lets them down, they look washed out and bad, this is where the price points doesn't stick the landing imo. For me the price point of a QS isn't worth the quality you receive in hand.
Owning two JND pieces in hand I can safely say that they come out above the 90% to their prototype, and combined with MM clothing etc. they look real. Images like below remind me of church statues with base paint and not much detailing. Compare the chest of QS and JND and the differences of detail are clear - QS is flat without giving much surface lighting showing its contours and detailing, JND's looks like there's actually different materials making the suit. Combined with bases having zero uniformity I just don't rate their polystone statues that highly, especially considering the price point. Their hair is a huge miss also; their Joker I have no idea how they arrived at the syling of that pieces hair, because it looks nothing like it should. For me I guess there's more than enough reasons to justify JND's price point, it could be a little bit lower than what they charge, but overall there's finesse and fine detailing across every single piece; and this spans the uniformity in their bases. QA bases are ufgy and bulky and have too much going on, this tends to be the case with most studios bases'. There's a cohesion of exceptionalness across JND's catalogue, I genuinely think you need one in hand just to see how astounding in person they are. Having this Batman in a well lit room will look like the scaled down film version, there's no two ways about it, the differences for me are night and day and don't compare - just my opinion of course.