Yeah I don't have to imagine, my launch window PS3 had a screwed up optical drive. It wouldn't take a disc. Just made a weird grinding noise. I had to send it back to Sony, and it was a total bitch to get them to honor the warranty since it was off of Ebay and they didn't send me a receipt with it.
Spoiler alert. Some people are going to be disappointed on Friday when they get their XBO and the thing doesn't work, or dies halfway through the Day One Update, or dies after a few minutes of gameplay, or dies because they broke it by doing something stupid that they won't admit and instead will pretend that it shipped broken. Who knows, I might be one of them.
And they'll bitch on the internet. And people will needlessly speculate that the problems are widespread.