With any brand of computer you occasionally get ones that have issues, but in my experience apple products have far less issues than the competition...
It seems that most people just shrug their shoulders when something happens on their PC, but if it were to happen to a mac they start going postal.
Case in point, yesterday I was helping a co-worker with a file, and I asked her to take a screengrab. She tried, failed, and said that she can take a screenshot after the computer has rebooted but then it doesn't work after a couple of hours. It's just something you accept with PCs. Same with reinstalling the operating system -- I've used macs since 1986, and never once had to reinstall the operating system. It's just not something that you have to do. I know many people who say that they reinstall windows every year to keep things running smoothly.
Personally I find Windows frustrating, inconsistent, slow, buggy, unintuitive, and it wastes my time. I made it a condition of employment when I went for my current job that I use a mac (and it's the only mac in the building!). I'm probably around 30-40% more productive on a mac than a PC, because stuff just works and you don't have to deal with times when stuff doesn't work.
As for mobiles, the iPhone is allright, but like anything all products have their strengths and weaknesses. I've found that for most people the iPhone makes stuff easy to do that you'd have to be a super nerd to figure out on other phones, but signal strength and voice quality aren't quite as good as other phones. The reliability and ease of use is better than most, however.
Swings and roundabouts, if you're not happy with something then take it back and get a different one... No-one will force you to use something you hate