Excellent, sturdy, and cheap. Cannot build a better one for the same price. Get it on sale and its a 'fantastic buy'.

It is sturdy, and rolls smoothly across concrete and a regular hardwood floor. I got it for $15, not really needing one, but figuring, why not? Since then I've used it several times to move furniture that would be far too heavy for me to move otherwise. It would be a 5 if the wheels had a way to lock them while you loaded something heavy onto the dolly.