Take a good look at the smart TV operating systems, if you're planning on using it over a roku/firestick type device... They all don't offer all apps you might want to use, or do use on your roku... Which can be frustrating if you're not aware of it before hand..
As TV's go, 4k/uhd they're all really good quality as far as pictures go.
I have a 65" lg.... And I like it. Surprisingly good sound... And functionally I like it a lot...
I do like Samsung a lot too. Would have got one of it'd of been in sale instead of the LG.
There are a couple things that I think are kinda dumb about mine tho.
My sound bar is blue tooth and the TV has auto connect.. But only for certain brands/models... And mine isn't one of them so I have to connect it when I want to use it. Not a huge deal but it makes no sense. My phone will auto connect to anything it's been connected to in the past and the TV can't? It's dumb for a smart TV In that way.
Also I have it connected to my echo, but the setup was a bit funky. It has an Alexa app in the smart os, but you have to download the LG app and register it they that app, not the Alexa... Again kinda dumb. But it does work... Can turn it on/off, adjust volume, change channels if on the web TV, and launch the pre loaded apps... Amazon, Netflix etc... Doesn't open anything I've added manually...
Still.. Great picture quality and sound... Most all other things about it functionally I like allot.. Those are the only two things I've found that were kinda meh.
And I couldn't beat it for the price either...