Hi Bob,
I have a set on my All-City Mr. Pink and I love them. They've got good traction and I haven't had a flat in the 500+ miles I've put on them. They're the first tires I've had on my bike, so I'm not sure how the rolling resistance is compared to others, but I still feel pretty fast! They've survived gravel, glass, and pretty much any common issue that slick tires would never survive. I highly recommend!