I don't have extensive experience using Lens Protectors, but out of the few I've tried, the GlassWarrior Lens Protector for iPhone 15 Pro stands out as the best. Its main advantages are that the glass doesn't scratch from contact with other materials, and any smudges are easily wiped away.

In my opinion, the Sapphire Lens Protector for iPhone 14 Pro has a slightly better aesthetic appearance on the phone compared to the GlassWarrior Lens Protector for iPhone 15 Pro, which also looks good.

I can't say anything negative about how this Lens Protector impacts photo quality.

Does not fit the iphone 15Pro - would literally have to be cut to fit - black circle covering flash. Totally unacceptable.

I wanted to love the lens, but alas. First, when installing it, one of the covers just refused to fit. While I was fussing with it, somehow a tiny dust thread managed to get between the glass and the camera, and I had to manually pry the cover it off and redo it. But that’s not the main issue. I took some pictures before and after installation, just for comparison. Photos of regular objects seemed okay. However, when I took pics of candles, it all came to light. The photos looked like they were taken through a glass window - there was a “reflection” of the flame next to the flame itself. You can see the difference in the pictures I attached. Sadly, that’s $16 wasted :(