They offered an upgrade, 400 lb. limit weight over their advertised unit of 300 lb. max. If you upgraded you got free shipping. When the merchandise was rec'd it had stamped on the bottom 300 lb. max. When I called to tell them about it, they said that they would be sending me an RA# in the mail for returning the item and they would ship out the professional one. I talked to James, with a foreign accent. Three weeks later I still had not rec'd the RA# and so I have been calling for the last week. When I finally got somebody, it wa... read full review »