We have two Dells at home for personal use (a desktop and a laptop) and my work laptop is also a Dell and I believe that all the computers at DH's offices are also Dell. So far, no issues! I have had my personal laptop for about 5 years. My only regret is that it had to come with Windows Vista
Windows 8 is supposed to have more of a mac-type interface I think. I am not sure how I will like it if/when I have to switch! I am stuck with Windows because for home and office I use tons of Microsoft Office. But anyways, DH buys all of his electronic type stuff from Dell and he likes them. He is much more geeky than me.