I had Paperlike 2 on an iPad Pro 10.5 but honestly cannot see how it differs from some of the much cheaper matte protectors.
After less than 6 months the texture started degrading considerably without using the Pencil much. They made me jump through all sorts of hoops cleaning the protector (generally a good idea to remove grease). When that didn’t help they did not send a replacement but simply told me to apply the second protector that came in the package and use that, “to see if there was a manufacturing defect with the batch”. The idea was obviously to bring my warranty claim (as per EU law) out of the time period where the seller was responsible for proving that there is indeed no manufacturing defect and then to subsequently reject all my claims (we are still talking about two sheets of plastic for 30 bucks).
Given their ****** CS, for my new Pro 12, I got a pair from Mumbi (a German company) for 9 Euros (including VAT) and it has the same visual clarity, texture and feel of the Paperlike 2 at less than a third of the price. Unlike the PL2 I was able to apply it without any bubbles at the first try. And previous experience with the company (got their matte protector for the iPhone 6, 6 plus and iPad Air 2) tells me that I can expect at least the same (and actualllevel of durability from the Mumbi protector.
Paperlike 2 is heavily overpriced imo without offering anything that differentiates it from generic products. I am pretty sure that their operation is just a front for reselling stuff that comes out of China like the rest and that no original engineering went into any of their products (their terminology is just bull....).
I would urge anyone in the market for a matte protector to just get one or two of the best rated alternatives off of Amazon and compare for themselves. You will not be disappointed - or if you are, you‘ll likely be disappointed by the PL2 as well.