I've owned two. Both "died" shortly (
very shortly) after the warranty expired. On both, the connector from the mobo to the power input cracked right off (I never yanked, dropped, or otherwise abused them. Just normal use.) I could fix it, but it was a pain, and the stress points didn't change, so it just happened again.
On the second, the screen began to go at 14 months. I would never by consumer electronics from Dell again.