I needed to arrange shipment of a plasma cutter and kit airplane from Grand Bay to Miami, myself being located in Namibia. All the logistics companies I contacted via the net either didn't answer or were to inflexible. With uShip I got the transport sorted, $500 below the average price and $800 below what the supplier wanted to charge me. It was at times tedious to administrate the bidding process, but all-in-all dealing with a shipment this way proved to be effective, both cost- and timewise.
I recommend using uShip. Its a great deal all around.