My computer crapped out, and it took a lot of work on my part, but Dell came through for me.
I bought a 3 year warranty with my XPS and a month before the warranty ran out, the computer quit working right. On the downside, I had to call customer service quite a few times, and I had to do a lot of work which took an hour or more sometimes (reboot, reset, restart and F12, etc.) Then they sent out a tech with a new hard drive. That didnt' solve it so they sent a tech with a new motherboard and that solved the problem. A lot of trouble, but I ended up with a machine that works and has new major components. My other Dell, from the scratch and dent sales page, is 4 years old now and has never had problems!