LG make excellent screens. This whole notion of them making screens with retention issues is outdated. Every manufacturer has some problems when it comes to that.
I completely disagree and I have an early MBPr with bad image retention issues to prove it. I've used many screens from various manufacturers over the last 10 years and I've never had a display with image retention issues as bad as this. I can look at anything for about 30 seconds, reveal desktop, and still see outlines of what I was looking at. It's worse with darker colors. That makes it difficult to edit images and annoying to switch apps and read something on a different background.
Imagine closing a window and being able to see it faintly for about a minute or more if there are any big color differences with whatever you were looking at before and after. Just imagine almost every window you look at actually remains with maybe 5% alpha when you switch away and you get my screen.
It started off as a "Whatever, I can deal with it" issue because I had to try to make it present itself and it went away fairly quickly. Over time it has only gotten worse. That "over time" part is key. It's been over a year for me and I know if I go to an Apple Store and show them they'll give me the "it's been over a year so you must have magically done/own this" bullshît.
That also affects my resale value. How do I list this in a couple of years? "2012 MBPr w/Image Retention" like it's a feature? The only way I see is to undercut the market by a few hundred and be upfront about it. Or pay Apple a few hundred to fix it now (maybe what, $500?), because I know they won't cover me.
At this point I hear someone say, "How do you know? You haven't even tried!" Call it my consumer instinct. I'd be really surprised if they did.
The right thing for Apple to do would have been to issue a recall. Maybe I'll take it in just to exhaust the possibility of them not covering it. I show the genius some quick tests, argue that it's an exceptional case that's gotten worse that they should cover (because they know about it), hear him tell me it's policy that they "can't" (which I know means "won't"), then just pay them to fix it. I'll keep documentation of it, wait a few years when the class action thing goes through, and get a refund. What a shîtty way to handle things (I hate lawsuits).
So to conclude, no, I don't think LG makes excellent screens being stuck with one of theirs in my MBPr. I'm also not going to apologize for any company involved that sells something defective and then doesn't do the right thing.