Fantastic service, would recommend to all my friends who are serious about their tellys. The calibration itself could have been done more quickly but Vincent let me ask him a million questions and was very knowledgeable about every topic I queried him on. The price of the service was also brilliant considering the travel and other costs associated. I am VERY happy with the contrast and balance of the picture on my 65ZD9 now, the skin tones being basically perfect now.