For commuting purposes, I would try something other than RnR. The tires performed well, but they wore very fast. I sold them before they wore out, but I'd expect 1500-2000 mile tread life. The Cazadero's seem like they would wear better and roll better due to the solid center tread. The RnR's had a very noticeable hum while on pavement and I felt they rolled just slightly better than a knobby CX tire, but much worse than my Pasela's (700x32), Marathon (700x38), or Hetre's (obviously, since they're all slicks).