#1. I don't like "Apps" and "Tech Junk". I prefer solid-state appliances and things that don't require mandatory upgrades.
I don't like the concept of buying a $30-40k car or truck that has a lot of apps and tech stuff that can break or requires upgrades and updates or becomes obsolete before the useful life of the vehicle. I typically have a TV for 10+ years before I update it. If I'm going to buy a smart TV, the screen will either need to be dirt cheap or it needs to be from a reputable company that will maintain the firmware/software. Just stating that so you know where I'm coming from.
I purchased a HiSense Roku Tv....it's not the H8F...I think it's maybe a 6 series. It's a 55" that I picked up from Best Buy with a Google Home Mini for $230 + Tax in December. The Roku responsiveness and everything, including remote is almost nicer than my $600 Vizio in my main media room.
I think HiSense also has Android TV screens. I don't know anything about those. I can only say, I would consider replacing my 11 year old 50" Panasonic Plasma with one of these if I see another deal in the low-mid $200 range. Most recently, I saw a 58" on sale at Walmart for $280. That's your range....$200-300 for one of those. I really like the Roku...check them out if you can find them in stores or online. Mine even has 3 HDMI inputs, I use an antenna to get local channels and just found out you can simply put a 16GB usb stick in it and use that to pause live TV. Pretty awesome.