Only ridden 1 1/2. Rode the Heartland Century last September and rode the first day of the Tour of the Mississippi River Valley (TOMRV) in June. DId not ride the 2nd day due to lots of storms across Iowa. Both rides are coordinated by the Quad Cities BC. I preferred TOMRV based on the challenging hills and scenery and look forward to completing the whole thing next year dependent upon the weather. The Heartland Century is an excellent first century though with a minimal number rolling hills.