+1. My Dell fan was full of dust, so the notebook started overheating. I asked Dell (over their online chat) if it can be replaced and two days later a technici

+1. My Dell fan was full of dust, so the notebook started overheating. I asked Dell (over their online chat) if it can be replaced and two days later a technician knocked on my door and took care of it. Total time wasted: 10 minutes. PS I didn't even have to pay for the warranty, as you can usually get a 3-year at-home warranty from Dell for free.