@jogal - I get your point on good quality 4k material. The problem, for me anyway, is sub 4k material using stock Kodi scalers does not come anywhere close to what MadVr can do.
LG OLED55BX6LB, Zidoo Z1000 Pro (ZDMC 20.2 Arctic Zephyr 2 Resurrection), Yamaha RX-A3060, Polk Signature Fronts & Centre, Wharfedale D300 Atmos surrounds, Heco Victa Prime Sub 252A, DSPeaker Antimode 8033 Cinema