Let me start this review by giving you a summary of the other 4K TVs I have owned, as well as my use case. I think that will inform you as to why I think this is such an amazing TV for the $$$. I have a 65 inch Sony XBR 750D 4K HDR TV, which cost me $1000, and a 40 inch Samsung MU6300, which cost me $399. The 55 inch TCL S515 that I am reviewing fits between these two TVs, but it is easily the best bang for the buck. I am using it in our bonus room upstairs, where it is primarily used by my son for video games on our Xbox One X PS4 Pro and by me for watching cable TV and movies. The S515 works very well for all of these uses, but I would not recommend it for a large room where people will be watching it at an angle, nor would I recommend it for a bright room. Here are my pros and cons, followed by a summary as to why I think this is a phenomenal 4K HDR TV.
Pros:
-Roku TV Interface - best TV interface out there, hands down, makes it very easy to access the devices connected to your inputs, as well as your streaming apps.
-Includes VESA mounting holes in decent location on back of the TV, was relatively easy to wall mount.
-Powers on quickly.
-Very good picture quality, not quite as good as my Sony XBR 750D, which cost more than twice as much, but as good as my Samsung, which cost almost as much, despite being much smaller (Samsung cost $399, this cost $404.99 on sale).
-Good connectivity, has 3 HDMI 2.0 ports, as well as Toslink Optical and Ethernet, and so you can hook up your cable/satellite box and two of your gaming consoles. The Roku software will automatically label your devices but you can edit as well.
-4K looks amazing, HDR is better than I expected given the limited peak brightness, just make sure you crank it up in the settings as the out of the box setting is too dark.
-Viewing angles are better than expected from a VA panel, but not nearly as good as my Sony XBR 750D, which has an IPS panel.
-Micro contrast setting works very well, it brings out the blacks very nicely.
-Did I mention the blacks? They look amazing, watching Jumanji in a dark room, for example, illustrates how well this TV does blacks, better than my Sony.
-Decent build quality
-Price - The price for this TV was $404.99, which is am AMAZING deal considering what you get!!! No other TV gives you this kind of price-performance ratio in my opinion.
-Includes HDR 10, but also the higher end Dolby Vision HDR feature. I use the VUDU app to watch many of the movies in my collection with Dolby Vision enabled.
-Good selection of options to adjust picture to your taste, including Brightness, Contract, Color, Dark/Normal/Bright HDR, etc.
-Works with the Roku iPhone or Android App if you prefer to control the TV using your phone.
-Remote is good, its the standard Roku TV remote. No complaints.
-Programs on cable TV look very good, the upscaling engine does a good job. The colors are deeper than my Sony.
-4K and HDR video games look amazing.
-55 inch size is a nice middle ground as far as size, it will work for a wider variety of areas than a 65 inch or 40 inch TV.
Cons:
-This is not a great TV for a bright room, as it lacks good peak brightness. I keep the blinds up in our bonus room and so I don't need higher peak brightness.
-Viewing angles are not great and so I would not recommend this TV if you are going to have lots of people watching it from sharp angles.
-Football and other sports look OK, not great like my Sony.
-Overall specs are mediocre and so if you are a spec hound, don't buy this TV. Go OLED if you want to have specs to brag about.
-A little heavy and wide, you might need two people to wall hang it.
-Needs some calibration out of the box, but you can get good starting settings from rtings.com, and then just crank up the HDR settings. They have them too dark.
The bottom line is that this TV will do very well for many use cases, including console video games (I don't like using TVs for PC gaming, but that is another story), movies, cable TV and sports. Yes, my Sony is better for watching football but as I note above, it cost more than twice as much. If you can only spend $400-$500, then this is a very solid option. Buy with confidence!!!