I used HDTVtest before so I had some previous positive experience. Vincent came as arranged and carried out his work very efficiently. Throughout his visit, some 2 hours or so, Vincent provided a lot of information on what and why he was doing, which I found very interesting. The picture on my Sony AF9 is so unbelievably perfect and life like that I cannot stop watching programmes/films (on the mainstream tv) sometimes just for the pleasure of the quality (not always the content :-) ). The difference for me are skin pigmentation and other facial features are more defined and true to life, also the depth of the picture gives almost a 3D impression. It is also now possible to notice the cloth type of garments (e.g. I could see the actor was wearing a herringbone jacket). The bright scenes are no longer eye piercing but very natural and pleasing. Blueray dvd quality is even better. Notes of the callibrations with all the necessary set up details came by email very promptly after the visit. If I was to upgrade my TV again I would not hesitate a second to contact Vincent and ask him for another visit. Thoroughly recommended service with guaranteed positive results.