I've only had this stroller for a few days, but it works well for my elder dog who has Cushings disease and is too weak to walk very far anymore. He was only a bit nervous the first try. Now he seems to quite enjoy his extra outings. I live a a rural and quite hilly area without sidewalks, but the road is paved. My dog weighs only 25 pounds, but it is a real workout for me pushing him up our steep hills. The stroller probably works best on a flat paved surface, but I'm still happy that I can take my usual long walks pushing my dog along so he can enjoy the sights and smells he can't get on his very shortened walks.