I have had these for less than 3 months and have had both fail where the cleat spring meets the nylon. Seems like a bad design as it happened to both of my cleats leading to slop in the shoe pedal connection.
Only got about 50 rides out of them. Not sure if that qualifies as putting it through the ringer, but I guess I wore out both cleats so it has to.
I bought a second set of the walkable cleats. Torqued each screw appropriately and broke my second set of these in 7 months. The actual metal c clip that connect to the pedal sheared off this time. My old speedplay cleats would last 1-2 years. The walkable ones seem to be made like garbage.