I'm fairly experienced in earning massive amounts of airline miles and converting them to awesome first class flights around the world.
For the Japan trip, I flew ANA First Class in their new suites to Tokyo and Cathay First class on the way back. I've flown 4 Lufthansa First class international flights, and once on Singapore Airlines First class. Of course a few biz class flights as well.
Ben took the video above during the Japan trip. It offers a brief overview, but I'm here to answer any specific questions you have to taking advantage of flying in style (or simply flying a ton for virtually free).