I am a Mac user myself, and while my laptop has been far from trouble-free, I've had zero trouble with customer service. Every single time my phone call has been answered in less than 2 minutes, nobody's ever hassled me or tried to weasel their way out of a genuinely defective part, and many reps have even offered more expensive solutions (i.e. shipping the machine back to Apple instead of visiting a local shop, or full machine replacement) instead of me having to badger them for it. I am currently entitled to a "new" (read: refurb) machine because I've had so much repair work done on mine (twice to the shop).
While it certainly sucks that my laptop has had these problems to begin with, the fact that the service is there to back you up means I will be an Apple customer for some time yet.
I've honestly never encountered a problem that required the manufacturer's support. More than a handful of my Mac friends have had to ship theirs in.
Also, FWIW, you don't ever have to ship your laptop in (unless you are doing a full replacement like me). Plenty of service providers will look at your machine without taking it away from you for extended periods. They won't come to your house though.
Of course when it's an Apple product that fails constantly it's just a "lemon" or "fluke". We'll see how Apple support turns out once they get their dominant market share every Mac fan dreams about.
P.S. It doesn't involve free upgrades to new computers. Secondly, I'm sure we all remember how Dell was renowned for their amazing customer support before they got to #1.