u/Hot-Magician8239

I just bought a 75" QD7QF for $374 + 5 year warranty for $80 but now reviews are making me feel like there's a better value one. I know the 75+" models have more dimming zones, have HDMI 2.1, and are 144hz compared to the 50, 55, and 65" models. I want to know if I should cancel my order and buy a 75" U6 for $504. Is the difference worth it? Would appreciate any opinions.