PDATE: 11/16/17 - Samsung has released another firmware update that lowers Freesync range down to 48-144hz. The overdrive issue remains. tftcentral has published a wonderful review that brings to light this monitors biggest weakness (pixel response times, black smearing, etc).
UPDATE: 10/27/17 - I can't recommend this monitor for Freesync users as it's become clear why Samsung ships these with such a poor Freesync range (72-144hz). When Freesync is active and you are in Freesync range, there is some extremely bad ghosting (overshoot) with dark transitions that appear to be from a lack of adaptive overdrive. It is less apparent at higher FPS but get's really obvious below 100FPS in games like Deus Ex.
To test this manually, I used CRU and deleted the vendor specific block, extended Freesync range to 36-144hz and fired up a few games. At or Below 70-60FPS the ghosting is so bad that it's unbearable. Disabling Freesync completely clears things up so as of right now it looks like there is something wonky with the overdrive implementation and Freesync.
All tests were done on the latest firmware.
PREVIOUS INFO:
-This monitor is not flicker free. It uses 360hz PWM at anything below 95 brightness.
-The overdrive settings (Fast, Faster) strobe the backlight to improve motion clarity. You lose all brightness control and Freesync when activating this and it's not quite on the level of Nvidia ULMB but close and a significant improvement.
-The original Freesync range was 80-144hz but Freesync 2 certification requires that supported monitors have LFC. Samsung has released numerous firmware updates (via USB thumb drive) since the monitor was released and the Freesync range is now 72-144hz enabling LFC.
-It only has 8 edge lit dimming zones (4 per side) which can result in blooming but IMO is still an improvement vs no local dimming. Having it on means loading screens are pitch black, etc.
-Don't buy this monitor for HDR, Windows 10 HDR implementation is broken + this monitor gets no where near bright enough to matter for HDR content. Although it has a wide color gamut, the lack of brightness (and dimming zones) results in crushed blacks.
-Although the monitor is very fast for a VA, there is still very minor G2G pixel response issues. It's basically impossible to notice unless you know exactly what to look for and go out of your way to find it.
Overall a great monitor. The only reason I'm not giving it 5 stars is because of how much variance I've witnessed between the 3 samples I've had. BTW, they come factory calibrated with a calibration report in the box.