My refurb rMBP (13", feb 2013 model) arrived today, and the first thing I did was inspect the screen and run an image retention test. The results are that after a 15 minute burn-in period, there was moderate image retention that faded to minor after about 5 seconds, barely detectable after 60 seconds on the mid-grey background, but it's still there 30 min later -- although subtle and only visible on a dark solid background. Secondarily, at the very top and bottom of the screen, for about 15-20 physical pixels (7-10 doubled pixels) high there is a very slight blueness going on and off at about 3/4 inch intervals. It looks as if there's a minor issue with the backlight smoothing. Additionally there's a little blue cloud at the top center, about three times that height, visible only on certain backgrounds with the menu bar hidden. All of this most noticeable at lower brightness levels, with darker solid desktop backgrounds. If it weren't for the alternating patches I'd think it was an optical illusion. Honestly, I wouldn't notice this in daily use, although they're kind of bothering me now. They're subtle enough to be impossible to capture on an iPad camera. I really don't want to go through the replacement rigmarole (nor do I really have time for it), but the image retention is a bit frustrating. Should I bring it in for a replacement? Will they give me one? What are the chances that the replacement has the same issues? What would you do?