the us general i have is the roller one big one, i use it every day in my shop, restoration shop, i also have a blue point cart loaded to the hilt and a matco big box cart with roller drawers loaded to the hilt , i have had the us general for about 2 years and im going to tell you there is abolutely nothing wrong with it, i open the drawers to mine a hundred times a day grabbing things, i havent had a problem yet, i think it will hold up as long as the blue point cart and the matco cart i have, mike.also it is loaded with tools and of course to the hilt!!