I bought one of these over a year ago and it has been working fine! Thing is I pulled the casters off and mounted my 12x37" lathe on it. It works great for that but is a little tall as I am only 5'8".
Thing is that the deeper drawers actually have a dual ball bearing slide out for them and that is better than most all of the Craftsman units or the other so called "cheap" boxes on the market.
Right now if you have the right copy of various Car Magazines there are discount coupons listing this roller box at $359 which is a real bargain.
I also put a side box on mine that I got for a lower discount than the $199 that they have been showing for a while now. Neat trick is that the crawer centers and slider locations work out so that you can interchange the stacking of the drawers to the way you want them. I alternated short and deep drawers in mine.