Just as an example from our latest batch (several hundred at least) of Latitudes:
When typing a word like “there” for example, where you have to type key A, key B, then key A again, it won’t register the second A. This happens on nearly every machine we have, and it happens consistently about 70% of the time. This becomes especially annoying typing passwords.
Dell support refused to believe this is an issue, despite several videos we have taken, but they have done everything to help us fix it and nothing has worked. New keyboards, updated firmware, new UEFI, new laptops, and it’s still there. Only with the onboard keyboard too. It’s not that bad, just annoying.
We’ve had a batch of older Latitudes that with only certain specific model numbers, would sometimes refuse to charge. No idea why, Dell did everything and never was able to fix it, and it was only that model, but all of them were doing it.
Had a set of optiplexes with AMD cards and having crossfire enabled wrecked Windows. Swapping cards with a different optiplexes and the error was unreproducable, only two of those specific cards in that specific optiplexes caused the problem.
Nearly every single batch we buy (for the last 10 years) just has some weird bug, and Dell often can’t find a remedy. Students also bring in consumer grade machines with odd bugs too, and we usually can’t figure those out either. None of them are that bad to work around, but annoying nonetheless. Otherwise Dell makes very good computers, and I am very fond of most non-alienware Dells.