Yes - J. Michael Straczynski really did great work writing the outline for DS9. And Razorfist lies here when he says JMS claimed Paramount stole the concept from him - never claimed that. The concept isn't that original. He claimed that he showed them the outline for his 5 year arc and DS9 hit every major long-arc plot-point of his Babylon 5 outline throughout its run. Which is true.
Depths of Deep Space Nine