Yet Macs at work have their own quirks. Just ask Tom Kelly of Healthcare IP Partners, a 60-employee technology service provider for hospitals. He led a sweeping effort to bring Macs into a Windows-only enterprise a couple of years ago.

Healthcare IP Partners began moving toward cloud services like NetSuite, which made the company less dependent on a single desktop operating system. Kelly, who wears two hats--CFO and CIO--at the company, saw the potential for Macs to relieve desktop-support management headaches and cut support costs.

Kelly contracted with a nearby Apple reseller and Apple support outsourcer. He adopted Fusion, a desktop virtualization machine, to let Mac users run Windows. Then he gave employees the option to work on a Mac or a PC.

Mac adoption in the enterprise skyrocketed. In only two years, eight out of 10 Healthcare IP Partners employees moved to a Mac. Kelly figures all of his company's employees will be on Macs this year, and he'll be able to dramatically reduce internal desktop support.

Kelly says the Mac experience has gone exceptionally smooth. However, there were a few surprises. Here are his top five: