I did some research and ended up buying an amFilm screen protector for my S24 Ultra. I ended up installing 2 screen protectors due to a warranty issue with my original S24U(Grey speck on the top rear camera). I'll buy from this brand again if I upgrade my phone. The warranty policy for amFilm seems legit, I haven't used it though. I bought this product with my own money and was motivated to create this post since amFilm sends a free wireless charger for online reviews.The Install:Both phones were new out-of-box with 0 minutes of use. They were cleared of dust and 100% clean at the start of the install. Both installs were much easier than tempered glass screen protectors of the past because amFilm mounts a rail guide system to their protectors. My one tip: make sure you super-clean your work surface so there is absolutely no dust around. I think I heard some people do their install in their bathroom after a hot shower as the humidity keeps dust out of the air.The first front screen protector install went perfect except for one small spec of dust under the protector by the camera. I think this happened because I didn't super-clean my work surface before install.The first rear camera protector was perfect, except for a spec of dust under 1 lens. Do NOT try to use their stickers to pull the dust off, they will leave residue on the inside of the sense. I used the microfiber wrapped around a screwdriver to clear the residue. My case did need to be modified by removing material to fit the protector since it's one piece of glass instead of 6 small lens shapes.The second screen protector went perfect as well...except this time I got 4 specs under the protector. I'm not sure where these came from. Again, I think this happened because I didn't super-clean my work surface before install. The static generated from peeling the adhesive side must pull dust from the air or nearby surfaces.The second rear camera protector was perfect.Short Term Performance:I didn't get to use the S24U without a protector since it was the first mod I did after the unboxing. So I assume some degraded screen performance is inevitable. All of my notes below are probably more of refection of every glass protector instead of just the amFilm.The protector is probably the exact size of the pixels in the S24U display. So when viewed straight-on it looks perfect, but when viewed from an angle the edge of the glass protector captures light and creates a red-green line at the edge of the protector. This happens for both sides. I noticed this on my first install so I scooched the second install ever-so-slightly to the right so when I watch landscape videos the red-green line only appears on the bottom.The fingerprint sensor works fine, I made sure to add my prints after the protector was installed. I did NOT turn on "Touch Sensitivity". If my finger is particularly dry it won't work, but I can't pin that on the screen protector. I'd say 9/10 times it works the first time.You do lose the deep black anti-glare properties of the oem S24U screen(it truly was impressive). But that's not unique to amFilm.S Pen works as expected.The rear camera protector does attract smudges pretty easy. I'm not sure if would be any worse than the lenses alone since I never used them unprotected. Photos seem to be unaffected by this protector.