Review on Experience Seamless Visuals with GIGABYTE Response FreeSync 27 Monitor - G27QC-SA: Curved, 165Hz, 2560X1440P, HDR & Flicker-Free Technology. by Benson Ollanketo

The reason it doesn't get a 5 is the auto-brightness feature that comes out of the box. This cannot be changed until you download the latest monitor driver from Gigabyte's website, after which it will fix itself. G-Sync works too, but as I said, mine had to be updated beforehand. For the price I think this is an amazing monitor but Gigabyte has already made a better monitor that now runs at 170Hz and the same for better picture quality. So go check it out instead of that old model.