I've been using the Das Keyboard Professional Model S for the last two years, and I've thoroughly enjoyed typing on this mechanical keyboard. If you do any sort of long form typing on a regular basis, then having a mechanical keyboard can make a huge difference in your life.
After typing on my MacBook's chiclet keyboard for years, I began to develop problems with severe wrist pain. Although it was never officially diagnosed, I'm pretty sure that I suffered from some sort of repetitive stress injury, which made it excruciatingly painful to type for extended periods of time. Needless to say, having a mechanical keyboard has alleviated 99% of these issues, and I can never see myself going back to using the MacBook's chiclet keyboard full time.
Earlier this month, Das Keyboard released an updated keyboard for Mac with new features and functionality. The Das Keyboard 4 Professional for Mac, as it is called, brings a similar typing experience to the table. Is it something you should consider if you're in the market for a new keyboard? Should previous Das Keyboard owners upgrade? Have a look at our video review and walkthrough for the answer.