I ordered a Dell laptop in the US for a relative in Vietnam, and was unaware that without changing the owner of the laptop and basically re-registering the item for my relative, the warranty would be invalid in Vietnam (funny how a smaller company like Acer has international warranty). Anyway, fast forward 11 months and the laptop stopped working; the relative was told there was a problem with the hard drive, and it would cost almost as much as the laptop itself to repair it. I decided to request for a change in ownership, and did not receive any confirmation or notification about my request, even though I followed every step given by a Dell customer service representative. Near the end of the warranty, and about a month after my then repeated requests, I received an email from this person who supposedly works for Dell, and the only thing he said was "Would you like to extend your warranty?", which should be quite obvious that you'd have to pay some hefty amount.
Aside from the fact that this laptop broke within 11 months, the other one I bought is slow to the point of near uselessness, even though it was advertised to work smoothly with Windows 10. An XPS 13 I bought, while having a decent (not great) screen, is also slow and can in no way compete with an Apple laptop, which is what the XPS is built to compete with.
I'm happily using an Acer Aspire now, and it's been running consistently without any problem. This one time there was a small issue with the screen, and Acer offered to replace the whole screen for free, and even paid for the shipping label. That, I think, is a company you want to trust. Not Dell.