Yes a great TV, well still a great TV, although now starting to show its age after 9 years
Is OLED that much better? I do find the plasma dark and also it shows lots of posterization in the gradients, but read that the LZ2000 still has posterization, also people are reporting flickering using the streaming apps, which would be using a lot. So in two minds right now, which is why it would be good to read a review from Phil.
I asked myself the exact the same question(s), i.e. coming from a 2010 Panasonic Plasma when I got the 65 inch JZ980 last year.
Straight off the bat it's 'only' a TV, so... it's still just a panel, not science-fiction technology. What I mean by that is some of the adulation an oled panel gets from reviewers etc. is a bit over the top. It's still just a TV. If you oversell something, then people might be disappointed.
But, on the flipside in the 11 months I've had mine I've found practically all of the numerous criticisms I read about oleds completely unwarranted. All talk of 'posterization', 'judder at 24 fps' (or 30fps video games), near black handling or anything else (or like 'low brightness' etc.) has in my view been nothing more than tech quibbling on a massive scale (or exaggerations at best).
The oled panel is the best experience I've had watching films, sport, series & playing video games. It blows the old plasma I had away in every department. In 20 years I've gone from watching VHS tapes on a small CRT TV to watching my favorite blockbusters on a 65 inch oled with perfect colors & perfect contrast (the blacks just make everything pop). Grubby 1080p Netflix streams? They look great. 1080p blu rays on an Xbox One S? It's like being at the cinema. Game of Thrones 4K UHD discs on the same Xbox? It's a visual treat (i.e. that Xbox One S which IMO is a perfectly acceptable little UHD player for what's worth). I have everything in terms of movies & series set to filmmaker mode as well (Disney plus with dolby vision dark).
Video games? Whether it's current stuff at 4k with HDR on my One X (I don't have a new next gen console yet) or older titles at lower resolution, it all looks good (I game on professional 1 & 2 modes). That's 30 fps games as well (forget talk about 30 fps being better on Plasma, it's not true based on my own experience).
In my view the aforementioned tech quibbling is endemic in home entertainment, aka basically finding something to complain about all the time to the extent people make themselves unhappy about tech toys which might not be perfect but for all intents & purposes blow everything which came before away in terms of overall package, i.e. when I take a step back & look at where we've come from since the 1990's? Oled is as good as it gets right now.
So if there's one single item in a home entertainment set-up which deserves some money dropped on it, it's a large oled TV. Everything else suddenly becomes less important (like the type of blu ray player I use, the console I game on, the streaming service I have etc.) because the screen is that good.