I'm an old guy that rides almost every day. I don't train systematically or shoot to peak for any specific race. I ride for fun. The data and information that these pedals generate via the garmin computer and apps is awesome and fun to look at. I have been given advisories from garmin to take a day off occasionally. This is good to hear from a source other than my wife. I'm also being advised to eat more calories and drink more water. This is all good information. I'm still working on outputting 600 watts and I realize that I'll need to drink a bit more water and eat a few more calories to do so'fun stuff! Lastly, I've switched the pedals back and forth between bikes with no issues. Oh, a pedal wrench is required.
I am just an avid cyclist and the data I get from these power meter pedals probably is not as useful as if I was in training or if I competed, but still useful. I favor my dominant leg and am now able to even my pedal stroke out. The battery life is good and I prefer replacing the batteries instead of recharging them. These are the Look Keo compatible pedals and are the same as my regular Look Keo pedals as far as clipping in and out and stability.
Seems Garmin has finally worked out all the bugs from previous models.