Are there any alternatives?

The most direct alternative is Asus’ ROG Swift PG27UQ, another 4K gaming monitor with up to a 144Hz refresh rate. Both monitors feature popular gaming features like HDR and G-Sync. The big difference? The Asus option will cost you over $500 more.

　　If you’re more interested in the smooth gameplay than high resolution, options like the 34-inch, 1440p Alienware Curved Gaming Monitor would do the trick.

　　Meanwhile, the 1440p version of the Predator XB gets you G-Sync and 144Hz for half the price of the XB3.

　　

How long will it last?

The Predator XB3 should last you many, many years. Achieving 144Hz at 4K is an investment in the future, even if only top-of-the-line systems can handle it now.

　　Acer offers a decent three-year limited warranty on its monitors, which includes mail-in parts and labor.

　　

Should you buy it?

Yes. It’s not perfect, but right now, it’s the best 4K gaming monitor you can buy.