I remember the time when these pedals released. Crankbrothers Candy is a milestone in pedal history if there is such thing. People seem to love them, I love them too.
They have different looks, cleats and modus operandi then the Shimano SPD pedals. Made up of composite plastic, Candy 1’s are more robust than they look.
I have the older versions, newer ones have ridges for “traction”, but frankly I don’t believe it makes any difference.
Internally, they are a bit flimsy with miniature cartridge bearings. These things click and make noise. There is no way such tiny bearings would last. I personally like using these on smart trainer bike. Shimano users can find them weird.