I have been playing around with it for a few days, it works great on the SDR games I've tried and far better than Windows auto HDR, which tends to screw up the saturation.
I tried setting HDR and Vibrance globally for all game, which did work in some, but others I had to set it manually in the control panel. I also had a issue that HDR was greyed out when I first installed it, after a quick google it turns out all connected displays need to be HDR for it to work, luckily my system has onboard graphic's so I enabled it in Bios and ran my second monitor off that. Hopefully they will fix that down the line.