I had mine done in June 2006. My septum was WAY more twisted than the surgeon had anticipated and after the op, it sort of collapsed on one side. Nothing TOO dramatic but it was noticable, which was a shame as I did it for my Feb 2007 wedding. I went and saw the surgeon in about the April/May 2007 and he immediately booked the revision. It's been pretty good since then, though I can tell it's slowly starting to warp again. I can't stand the thought of having to have it done again though.
When did you have yours done? It depends on how thick your skin is. Some people have thicker skin than others and thick skin takes longer. Mine was fully settled after 2 years.