If this is about the Nikon D600 I bought, I'd say, I'm happy with the camera and price from you. However it developed dust on the sensor after no time of shooting (definitely not from me changing lenses etc). This had caused me a huge problem on a job that I shot in South Africa, as I couldn't see this in bright sunshine and huge amounts of the footage are unusable. Your staff have given me a free sensor clean which I'm happy with but we'll see if the problem recurs. I feel this is something you should be taking up with Nikon as I see on forums that this is a common problem with the D600.