I've had the 55" QLED for around four years now. It really is a great picture. The one downside to both the Samsungs that I've owned is that the stupid built in smart menu (Netflix, Amazon Prime, Hulu, etc.) is ALWAYS problematic. Using Youtube TV off the Samsung menu, it's always stalling to load or else when a show is running, it will freeze up and buffer as if I'm having bandwidth issues. If I run it through my Roku, everything works fine. So I run all that stuff through the Roku, and it's likely more secure as well. I have the Roku running through a wired connection. The one thing with the smart TVs is you really have to go through the menu to turn off the "convenient, but we're spying on you" stuff.
I have a pretty big 2022 Costco reward that I haven't gotten around to using yet and that expires in DEC. I'm probably going to use it towards the series 8 65" NEO QLED now that the series 9s have been out for a while and the 8s are dropping in price. That's about the biggest TV I can put at the good TV spot in the living room, otherwise I would have gone 75". The 55" one will go upstairs to the bonus room, which I have slowly been turning into a game/arcade room.
HH - how are you liking the Samsung soundbar? I'm thinking of getting one with the new TV. My current TV actually does really good sound, but I don't have the good onboard options for tweaking sound so that I can prioritize speech range over music in movies and stuff where they make the dramatic music so loud that I can't understand what anyone is saying.