This is a dangerous and potentially highly misleading statement. NVIDIA tests devices for compatibility with G-Sync compatibility, in several tiers. It has not yet been published if this monitor has been tested for G-Sync Compatibility. However, Freesync 2 (which this monitor has) follows a much more rigorous certification process than the original Freesync. While this still does not mean that is G-Sync compatible (can't say that for sure until tested and announced officially), it does however increase the likelihood of eventual compatibility. Finally, the statement that Freesync monitors run into issues with G-Sync has primarily to do with the compatibility and the level of testing that was done on give monitor Freesync implementation. Which is the entire point of testing/compatibility/certification. Ultimately, what this means, is that without more information, this monitor is exactly what it says: namely a Freesync 2 monitor. AMD and Intel Integrated graphics support Freesync 2 completely without issues. NVIDIA users may potentially run into issues IF this monitor does not meet the same specifications for certification as NVIDIA requires for G-Sync Compatible Certification. Finally, this is a high refresh rate monitor that is capable of the high refresh rate, with or without Freesync 2 or G-Sync technology. As a result, the benefits of high refresh rate exist even when you do not use the respective Adaptive Sync feature, and this means that it is still very good.