I was unfortunate enough to own a PA238Q recently, which stayed with me for all of one day. The backlight bleed was horrendous in the lower-left and upper-right corners. On a black screen, there was a thin sliver of actual black trying to chicane its way through mountains of God-awful backlight bleedage. Took it back to the store and got "there's nothing wrong with it" as the guy puts a red screen on the page and shoves it under a spotlight. Sigh.
I'd say your screen looks good!