Experience has taught me not to have high expectations of products from unknown manufacturers. This cart was a refreshing surprise to that generality! I was very impressed by the quality of the materials, and the engineering and design that went in to such a simple, utilitarian item. The four high-quality locking casters move easily across a relatively dense carpet, and effortlessly on linoleum. The sheet metal is thicker and stronger than expected, and has gussets and lips in critical areas to strengthen the unit further. It's all fastened together with welded in nut-serts, rather than loose nuts. Although the package doesn't include assembly instructions, it does include the tools necessary, and it's pretty simple to put it all together securely. This cart is everything that's advertised, and more. My purpose requires the placement of a heavy (50 lb.) appliance on the top, and I was concerned that the cart would be easily tipped over at it's maximum height. I have no such worries now. Even on carpet, this cart feels stable enough, and rolls easily enough that I would have to really try to tip it over, even as top-heavy as it is. I would reccommend this to anyone if it suits their application.