My experiences with Apple support have, by and large, been very positive indeed. A few weeks ago I was having problems with my 6-year-old desktop -- obviously LONG out of warranty. It seemed to be hardware, but I finally, after several hours of trying to fix it myself, called Apple Support, thinking I'd just pay for a consultation, so to speak. The guy ended up talking to me, making a few suggestions and giving me his opinion (he thought it was hardware, too), and sent me on my way. Turned out to be holes in the OS; I did an archive and install and was back in business. (This was NOT what the messages in single-user mode were indicating, either.)
Great experience.