To be honest, I've never left the brightness that high on my tablet during regular use... the screen is so bright I can literally feel retina burn after a while
On my S4 and S2 before, I always use full brightness since they are both AMOLED... I love making colors pop with a jet black background. This is the first time I am using a Super LCD screen and although the brightness in nits isn't off the charts, I find it way over my personal comfort level when there is a lot of white background content.