If you're playing video games on a high level, this is the sort of monitor you dream about! I had a 27 inch monitor 1080p, it works fine with 24 inch or less, but if you're going big, like with 27 inch, go with something more than 1080p, or else you can see the pixels, which you definently dont...
144Hz; 1440p; looks amazing and everything feels wonderful
It's expensive and you'll need a good screen card to get the max out of it