Here's a video detailing what I've just gone through with Dell and my XPS 15:
Those of you wondering what I actually sound like, there you go. (Though I have posted videos with my voice in the past, but not lately.) Always weird for me to hear my own voice - I feel like I've got a little Ray Romano thing going on that I didn't used to have.
My XPS 15 is gone now, and good riddance. I also swore off Lenovo after my last ThinkPad, but I couldn't find anything better, so I've got a ThinkPad P50 on the way right now. It's like a full 180 from the design ethos of the XPS 15, but as good as it could have been if only mine worked properly, I also realized as I used my XPS that it was just too limiting. It is a 15" laptop but it feels and works like an ultrabook, and I just don't really want an ultrabook. I want an old-school, fully expandable laptop with a number pad. Hell, if I could have ordered a P50 with a Blu-Ray drive, I would have.
Don't get me wrong, though - I absolutely would have kept and enjoyed my XPS 15 for years if it just didn't break in multiple different ways only months after purchase.