This is a really great TV for the price point. The picture is great, it is super light and easy to mount. I love the smart TV features, we use it for 100% internet TV. There are only two small issues. Every once in a while the operating system hangs up and you can't select the apps you want. Even returning to the home screen doesn't seem to remedy it. Sometimes you have to keep selecting different apps to finally get it to return to normal. This has happened twice in a month, not a super big deal, it feels like it's probably a bug fix that may get fixed in a software update. The only other small issue is the sound quality is not the best. Its not bad, but if you like to listen to music etc, you may want to connect a secondary surround sound system. Overall this is a great product, I don't think you'll find a better 50 inch 4K TV for the price.
This is the 4th Vizio TV purchase that we've made in the last couple years, we love them so much we have one in each room! The Smartcast feature makes watching everything so easy and the picture quality is very good for the price of the TV.