Bought this TV to replace an old LED HD TV of a similar size that had started to develop faults with its backlight. The difference moving to OLED was fantastic with the huge contrast and lack of blotchiness. The 4K is also great to watch and the upscaling seems to work very well. The sound quality is also very good as well. The TV comes with a suite of apps too that once set up, work every bit as well as the Fire Stick we were using on the previous TV.
Biggest downside was the set-up process. I would have subtracted a star for this, but I think it was just bad luck because it turned out that after days of having issues, it had turned out we'd tried to set it up when LG were having a massive server outage, and once that was sorted everything was fine. There's also a couple of other gripes in that many of the ports are rear facing and the power cable is permanently attached to the rear, which isn't ideal for wall mounting, although I can so far get by with the ports on the side (just).