Personally, as long as it isnt distracting, I'm fine with it. This, is what I would class as distracting (my 6th rMBP, soon to be returned). Oh, and its an LG panel, unsurprisingly. The image retention doesnt bother me. Now imagine running a letterboxed movie through the middle of that mess.... The image may be a little overexposed, but you get the idea.