The Good: Good quality, Solid platform, grip pins, reliable clip-in/out great mud-shedding
The Bad: Platform is fairly pointless unless you have shoes with a hole in the sole so you don't ride on the retainer springs.
I have been mountain biking for 6 years, riding mostly XC/Trail and had never second guessed my choice of platform pedals... until I took a vacation to Colorado, rented a Yeti 575, and got stuck on rental platforms for two days of epic Front Range, Rocky Mountain riding.
First off, the low rating is not for quality but purely for design issues.
I bought these pedals and a pair of 510 Maltese Falcons for two reasons:
1: I use my bike for many things and don't want to only be able to ride it with one pair of shoes.
2: When I use the clipless shoes I don't want to have difficulty walking when off the bike.
Unfortunately the springs on the pedals protrude from the platform too far to make riding the bike with other shoes much of an option. I also thought I might use the grip pins while clipped in as well but they grab my shoes making unclipping more difficult.
Overall these pedals perform well, and the combo platform/clipless is a good idea but I don't see a way that both types can perform well in a single pedal.
When these wear out I will likely switch to their candy pedals and save some weight.