I've been using them for three or four years on my most used bike. I take the pedals off a few times a week to leave the bike a bit more theft proof, I switch pedals a couple times a month or a couple times a week depending upon rides (this bike gets used for commuting, travel and errands). The QR release mechanism works just like the QR for for a compressor hose. You need to keep grease on the pedal shaft, otherwise I don't give them much thought.