On first switching on the LG OLED I was presented with such an array of adjustments all very good you might think but unless you know exactly what you are doing you are better leaving well alone. I did do some adjustments which quite honestly was a bad move. I had read Vincents articles on his website so decided to use his services. After all if you have paid a lot of money for the television you want it performing to it's full capabilities. Vincent arrived on time and asked questions about our viewing criterea. He explains the full process as he is making the adjustments. This I found refreshing as usually technicians do not want to tell you what they are doing or if they do 'blind you with science' not Vincent he wants to make sure you are comfortable with the process. In my opinion it is money well spent and if you just switch on out of the box you are not getting the full potential of your set. The choice is yours but I don't think you will regret it.