I don't commute, but I've used these tires for the last two years. They're excellent. I got ~3200 miles on the rear last year, and am currently using the front from last year on the rear. I've gotten two flats since I started using them, one from tire wire and another from a gravel shard; either of these would've happened with any other tire. They stick well enough to race on (I did last year).
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Regards,
Chuck
Demain, on roule!