So first impressions: this product is very sturdy and easy to cut/install. I wish I had more. I covered most of the interior of my doors with it on the internal and external panels. Speakers do sound much cleaner.

BUY THIS. I debated heavily between this value sound deadener or the far more expensive, yet famous, Dyna Mat. I read a lot of reviews for both. I wanted to stop the trunk rattling from my Rockford P3 and step up the quality of the bass. I heavily weighed the cost of Dyna Mat and it’s legendary performance versus this unknown (to me at least) contender. In the end, I’m cheap so the Noico won out. The packaging is well done and the sound deadener itself was tucked nicely inside. I LOVE the diamondback raised finish on the foil side. It makes it so much easier to see when the deadener is applied correctly - something you will come to appreciate as your arm feels like it’s going to fall off from rolling it on. First, use some isopropyl alcohol to clean the metal you are attaching this to. Let it dry. Cut pieces to form and start rolling it on (use a metal roller with ridges, not a rubber roller, seriously - metal roller with ridges). Noico deadener adhered easily to my car. It took me about 45 square feet to COMPLETELY cover my trunk, top to bottom. It’s heavy stuff (should that matter to you). Make sure to reach in between metal panels to apply deadener to that metal too. Overkill perhaps, but the price of this sound deadener warrants doing so. After reinstalling the trunk lining, I used heavy duty duct tape to cover up the foil backing that was still visible as I did more of a patch job to get complete coverage. Probably took me 4 to 5 hours to do the trunk bed, sides, deck lid, and the rear deck that sits above the trunk - I actually used two layers there as that was my main rate culprit. I love how my trunk ‘thuds’ when closing it after applying this stuff! Now, you can stand outside my car by the trunk and you won’t hear a single rattle (yet, at least - I’ll pound it till bolts start rattling loose, lol). Overall, I am extremely pleased with this product and it’s performance. Don’t mess around with other value brands or even the name brand - this will be your Huckleberry.