I received my Nanostate Onyx https://nanostate.co/product/onyx/ today. I did not receive this for free in exchange for an unbiased review. I paid the 50 bucks and also had the, ummm, interesting order experience (to their credit, it did arrive in CA from the UK in 5 days once we got the shipping issues out of the way). I finished applying the three coatings about two hours ago. It is indeed perfectly clear and doesn't change the look/feel of the Jet Black iPhone. You would have absolute no idea that there was any coating of any sort on your phone. I hear this about skins often (especially on here), but you can most definitely tell when a skin is on a phone. This stuff... invisible. If you're not familiar with the installation, you can watch the video here: While applying, it does 'fog up' exactly like the video states. Yes, it's a bit unsettling at first. But after waiting 4-5 minutes you wipe the coating off and the surface is back to normal. You do this a total of three times. As stated, the coating doesn't adhere to Sapphire, Glass, Plastic, etc. The coating wiped right off my camera lens, the Apple logo, etc (it only adheres to the Jet Black finish). Some tip and tricks: Apply in a well ventilated area. This stuff smells like a combination of nail polish and model airplane glue. Place your iPhone on a lint-free cloth of some sort. It will be face down and moves around while you rub the solution on/off. Wash your hands between coatings. I have no idea what's in this stuff, but I suspect it's not great for your skin. Try and cover all parts of the phone that are Jet Black (back, sides, top, bottom). Some things I wish were different about the product: A bit more solution. It does say it's good for a few coatings - needing to be re-coated every 6 months. The bottle is very very small and even wasting one or two droplets is going to cost you. The supplied amount will probably last about two years. Better and larger cloths. Since you're using these to clean the phone and rub the solution on/off, a larger cloth would be ideal (and one that doesn't shed little pieces of lint - I ended up using my own). As for the most important question - does it work? Well, I'm not going to take a 9H pencil to the back of my phone, but I'll report back in about a week and let you know if there are any micro abrasions (this is a new phone, so I do have a reference point of zero abrasions). I keep my phone in my back pocket, away from keys, coins, etc (I also keep that pocket relatively lint free). I'll use/treat it like my iPhone 6s Plus (no case, not babying it but also not dropping it, sliding it across concrete, metal etc). If you have any questions, feel free to ask! I'll be Macrumors' Tim Ferriss of Jet Black iPhone protection.