The latest iteration of the Paperlike brand screen protectors have very little (if any) noticeable rainbow effect, especially compared to the last gen. They also provide a much more natural surface for drawing or writing with the Apple Pencil, and they do a good job of reducing glare/reflections. HOWEVER, as a heavy user (I'm a professional illustrator and use Procreate in my workflow frequently), I can say that these screen protectors do have a few flaws of their own. First off, the cost is quite high compared to other screen protectors. The writing surface is great initially but quickly degrades as oil from your hands accumulates. You can restore a bit of the texture by cleaning it, however you get diminished returns on this as the protector ages. Another big draw back is that in order to reduce the rainbow effect they had to make them a bit thinner, and as a result they accumulate scratches quite quickly. They aren't noticeable when the screen is turned on (for the most part), but your iPad does start to look beat to hell fairly quickly when turned off.