I have had them, and have them... and love them.
I also managed to purchase the very LAST old style collapsible Hazet cart in the country back in the '90s from Zelenda Automotive. I had one of the larger carts, but sold it a year or so ago. Kept the little assistent cart.... It's awesome. Not practical for use at work, doesn't hold enough. Comes in handy in the garage at home, though.
Oh, and Hazet wrenches are the very best I have ever used. Better than any of the Snap On ones I own, and 1/3 the price.