We just moved into a house with NINETEEN steps to the main floor! Without this clever device we would end up leaving everything in the garage! We have two of these devices; this one and another that has a roomy bag attached. We find both extremely useful. The triple wheel allows continued contact with the stair as it moves from step to step so nothing gets stuck.The VEVOR cart is much more heavy duty than the others and my son has lashed some very large items to this, dragging nearly a hundred pounds up the stairs. If this breaks down, we will simply order another.