I have been waiting for SPD power meter pedals to come out for years and now I finally have a pair. I recently purchased a bike with a built in power meter after buying these pedals for my previous bike and I switched these pedals over and use the data from these pedals while riding my new bike 2/2 to the advanced power metrics available while using Garmin devices. I haven't figured out how to use the metrics but hopefully as people look into the metrics we can figure out how to utilize them to train smarter and more efficiently
I just received my pedals i bought on special over the Memorial day weekend special. The function is outstanding i just with they were about $200 less. The only other downside is that they are heavy as lead. I normally run titanium Xpedo's so these are triple the weight. I'll use them training, but not racing.
I have these mounted on my Gravel/Cross bike. They installed easily and have worked without interruption on two races and a number of training rides (maybe 500 miles so far?). They are expensive, so only "reasonable" in value for me.
The pedals are great, and easy to move from one bicycle to another. A disadvantage is that they require to raise the saddle, as the foot will be much higher than on a normal pedal.