I have to wonder if there's a market for people who specialize in helping foreigners do factory tours like this more efficiently. For a few hundred dollars, someone who actually knows China could have easily paid for themselves by preventing ripoffs like the taxi to the border (as others have pointed out, the train is dirt cheap) and the rush visas (you can get them done in HK within 24 hours for way less than $200),…
They didn't mention whether that price included the PRC processing fee, but if it did that's not a terrible deal for having expedited it in the States. Honestly, given some of the crap I've had to go through with PRC immigration, I don't blame anyone for paying extra to make sure everything's in line before they fly 18 hours across the world.