Joshwrote a review of Shimano PD-M647 SPD Dual Platform Pedals on September 9, 2009
The description really says it all: "These pedals take on a DH race as easily as a day on singletrack, and theyll even give you the versatility to ride to the store without changing into bike shoes". I haven't really noticed anything wrong with these, which means they are doing a good job. The only thing that did go wrong is the left pedal made a loud annoying "clicking" noise with every cycle, and it was starting to drive me insane. After a couple rides, right before I was about to send them back, the clicking went away.