I am a basic average computer user. I have never taken a class or read a manual. I have physically repaired both, no difference really. I have had to fix software issues with each by perusing through the computer and finding the answer, I didn't see much difference in either and found myself being able to deal with the same level of stuff on my own regardless Mac or PC. When I do need support though, that's where I find the difference, especially when dealing with a lot of specialized software that intergates various hardware components like on the bridge of a boat. If I have Macs going, the support is almost non existant and their ability to deal with problems become less. Try running Transas on a Mac or Linux box when you're inputting a Furuno Radar, 3 GPS signals (one of which is also a GPS gyro, one a WAAS whatever, and one a survey grade Leitz) a physical gyro, and outputting to an autopilot and a Simrad DPII system. The software just isn't developed to do it. Granted I haven't tried it lately, and I guess if you're running Windows on a Mac box you could do it, but then you have Windows on your Mac, and why pay extra money for that?