Of the many 15" MBPr's we have at work, I'd estimate about 20 out of approx 65 are in the Art Dept. The manager is extremely picky, deeply experienced & brand neutral regarding components. Most of these are less than two months old.
They're all are subjected to rigorous testing & setup before being put into service. He feels there's nominal difference, well within specs, between LG & Samsung. IR has not been a problem, and now that Apple's issued the update to fix the fan problem that affected nearly all of them, they're all functioning very well.
They're all are subjected to rigorous testing & setup before being put into service. He feels there's nominal difference, well within specs, between LG & Samsung. IR has not been a problem, and now that Apple's issued the update to fix the fan problem that affected nearly all of them, they're all functioning very well.