The only problems I ever have are with my GF's Apple computers ...
With the exception of 1 dead hard drive several years ago, I have had absolutely no issues with any of the 4 desktops and 1 laptop that I've owned over the last decade.
My/My GF's Macs, however ...
iMac in for repair 4 times since purchased in August 2007. Multiple parts replaced each time. Still heats up like a m0therfvcker (if it's on for more than 3 hours, you'll burn your hand if you touch the top left corner) ... As soon as it's out of warranty, I'm watercooling it.
Macbook's battery, for whatever reason, just decided it would stop charging the other day. No warning ... Hell, I used it on battery for about 4 hours last weekend while on a bus/ferry trip and it still had plenty of life left. Oh and the AC adapter died after about a month.