We replaced a Panasonic plasma TV with an LG OLED earlier in the year. I tried LCD at first but the difference in color and brightness as you moved around the room drove me nuts. As others mentioned you'll probably want to turn off the motion smoothing or at least scale it way back. Black levels are unreal. If there is a long black cut scene in something you're watching you may think the TV turned off.

The only thing I don't like is watching sports on it. It doesn't handle motion as well plasma does. If you turn on some of the motion controls the movement looks better but fast motion will look odd. When watching football with the motion controls on the ball will disappear when thrown. It's like the algorithm can't handle the speed of the ball and doesn't insert it into the additional frames it's adding to smooth the appearance. If you go deep into the video settings you can turn on a setting that adds black frames to help with motion but then all your settings are darker. I won't replace my other plasma until the technology for handling motion is better.

Since the individual pixels generate their own light like CRT's and plasma sets do the picture looks the same from all angles. I think this is one reason former plasma owners buy OLED sets.