If you're not going to get a monitor with g-sync then the first monitor you linked is good. Some other alternatives are BenQ XL2730Z, Acer XG270HU, and Acer XB270HU, with the last one being IPS, which offers better contrast and viewing angles. Keep in mind sometimes these monitors need calibration to really look good. In any case, if you play a lot of FPS games, it'll be tough going back to 60Hz after playing on a 144Hz. I hope you enjoy whichever monitor you choose to get