Vizio TVs' refresh rate ranges between 60HZ to 120HZ. For gamers, a higher refresh rate is very beneficial. If you're someone who mainly uses your TV for gaming, you should consider a TV with a higher refresh rate so you can enjoy the smoothest possible gameplay.
However, keep in mind that you'll need a gaming console that can take advantage of a high refresh rate — the PlayStation 4 Pro and Xbox One X both support 120 Hz — and you'll also need to make sure your HDMI cables are up to the task.