Originally Posted by
X-LinkedRider
Incorrect. The notion isn't that crete more power, it's that you create more accurate consistent power as you can only achieve power in the up stroke while clipped/strapped in. Any quark, powertap, power meter can clarify and show this to you with real numbers. Creating power on surges as you would with platforms is not nearly as efficient (Entire pedal stroke) as being clipped in.
Although that really doesn't matter that much for a commuter or casual rider. You really need to learn how to take advantage of clipless pedals. I know that many people, including myself, still had the tendency to create those power surges when pressing pedals down, even with clipless. It takes time to train your brain and your muscles to do this right. Which IMHO isn't worth it for non-competitive riding. At first I was getting cramps when trying to pull, my legs weren't simply used to that. And I like the convenience of regular shoes when commuting or riding errands.
Now, I've been trying to learn riding my MTB with SPDs, they really help with climbing and hopping, but, again, it takes time to learn and you need to be strong and good rider not to fall when your legs get weaker after some riding.
Finally, the main advantage for me is the shoes, not even the pedals, for long rides: the stiff soles help with feet fatigue and prevent those hot spots on long rides. Although, I can get similar effect wearing the same shoes, sans cleats, with platform pedals.
I've done centuries with platform pedals, I toured with platform pedals, so they're not that beneficial.
So IMHO, it's a matter of preference in the end.