What is the benefit of Shimano Click'R technology?
The Click'R system allows for a more recessed cleat in the shoe. It is a very similar design to Shimano SPD but is marketed for commuters and trekkers who want dual purpose shoes for when they are on and off the bike.

They also allow for multi-release meaning they offer a wider range of movement to release the cleat from the pedal making them easier to use.