Well, that is a TN panel, so it will have poor viewing angles and not great color accuracy. If you are only gaming or consuming media, this can be okay.
Though if it is like the original production G-Sync monitor PG278Q then it won't be as bad as cheaper TN panels, as you can see it has an insane response time. And it is relatively inexpensive. This is one I would like to see in person before ordering. Only reason I never picked up a PG278Q was because I already had an ASUS TN panel and they have a lot of flaws. Viewing from above or below is particularly bad, though this one has a stand so you can adjust the eye level if needed.
Though considering how long people tend to keep monitors, I say buy a little ahead of the curve. Those IPS panels at 165 and 170hz are really 144hz panels overclocked. When you run that at 144hz, they do a really good job when it comes to response times, so there is little loss and you end up with the viewing angles and better colors.