Bebop allows 20 degrees of foot rotation before releasing. Most pedal systems have float that isn't really free, but have a spring to center the foot on the pedal. Bebop pedals have a completely free-floating system that allows your foot, instead of the pedal to pick the most comfortable position. This will make some people nervous at first when they notice their foot twisting all over, but I found the adjustment to be short. Once I got used to them, I learned to love the free movement, and the added comfort associated with that movement.
Bebops are great for shedding mud.
The pedal is completely open so when engaging, the mud flows right through. After using them in a variety of conditions from thick mud to stream crossings to desert sand, I found that these pedals have the durability to withstand the test of time and the elements. In extreme cases, these pedals have been known to resist releasing. This happened mainly in the sand and then only when the pedal was not lubricated. In fact, these pedals worked better in the mud than in the sand.