1) Huge spec of dust under the screen
2) Horrid, horrid backlight bleeding
3) Yellow screen on bottom 1/2
4) Bad backlight bleeding and dead pixel
Should I just ****ing give up, or do "perfect" iPads actually exist? I'm sick of going back to the Apple store. They oftentimes give me a referb which obviously isn't going to be a good iPad...
1) It happens, sometimes it's not actually that rare. I've had a model with dust under the screen no big deal, got it replaced.
2) Get it replaced (you already have).
3) That's just the glue, give it a few days to dry first before you return it. But since you already did, no reason for this sentence I guess.
4) Dead pixels happen and the backlight bleeding isn't good but they should have just replaced the screen not the entire device. Might be easier to just do the entire device already on their end though.
You've only had a few replacements and the product is slightly new still. Yes, perfect ones exist and you'll probably have better luck returning it and buying a new one, as the models you've gotten are refurbished and quality is a bit lower with those from my experience (you'd think it'd be better, no?).
There is no need to curse and get upset. This is life, if you can't deal with it move on to a different product. Getting it replaced a few times isn't so bad.
Try getting a bunch of iPhones replaced (15+) over 3 months. Then you're entitled to bitch about quality.