i've got shimano A-600's on my road bike. they've performed flawlessly now for 2 service-free years of heavy mileage. some might be put-off by their single-sided nature, but just as with SPD/platform combo pedals, i found it pretty easy to adjust to knowing which side of the pedal to be on to clip in, and it's their single-sided nature that helps keep them so nice and light at 285 grams. and stealthhammer is correct that you can't use the non-SPD side as a platform. i mean, you can in a pinch for a short distance (i've gone up to a mile on them in sneakers), but it isn't terribly comfortable or safe.

and yes, they do scratch and scuff easily, but overall they're great pedals. an ideal solution for anyone counting grams who still wants to ride clipless with a recessed cleat.