Depends on how high your standards are. There's a reason you can't find anything over about 35" when you search for "gsync monitor" on Amazon. I'd second most of what Apatheist said, though I'm much more jaded on the refresh rate thing. I've had really good luck on the better Asus monitors. My personal preference right now is two 1440p 34" monitors. Seems to be (from past testing) less taxing than a 4k monitor by itself and gets me plenty of real estate within good viewing range without falling afoul of poor off-axis viewing artifacts at the edges.