Fairly serious runner (marathons, triathlons etc). Most training was on a paved bike/running path where she could give the stroller a push between each stride and didn't have to maneuver it much. Used it for our last two kids so we didn't need it to last forever, and when our neighbor borrowed it to lug 50-lb bags of rock salt and busted the frame we didn't care. Got a few free dinners out of it and called it good.