After riding clipless exclusively for the last 4 years, I decided to give power grips and platforms a try. I really wanted to like it, but I just didn't. Even when I twisted my foot into the grips as tight as I could, my foot still lifted off the pedal a bit on a hard upstroke. I don't know how anybody rides brakeless with them, they feel way less secure than clipless to me. They are also a pain to get into, where clipless has become second nature to me. I'm glad so many people are happy with them, but its clipless all the way for me.