Installation was very easy. The screen protector goes over the edge of the screen, so there's no light refraction on the edges like you can see with some other protectors. The surface is very smooth and nice to the touch. Fingerprint sensor works great with this protector - only a handful of rejections, over 95% success, especially if you press a little harder.
As for the anti-reflection properties - it might be a little bit less reflective than other protectors I tried (which weren't marketed as "anti-reflective"), but not by much. Certainly nowhere close to the S24 Ultra native anti-glare coating, but it's certainly not bad.
Colors of the screen stay relatively the same - without a reference point of original screen I can't tell the difference. Touchscreen works the same as it did without a protector. Same goes for the S-Pen.
Overall I'd give it a 9/10. Very good option, easily one of the best on the market. With improved anti-glare coating it'd be 10/10.