Indow inserts are great! I needed a solution to block my very rude neighbors' backyard TV/subwoofer noise plus their late-night parties. They built a backyard 'hut' less than 15 feet from my bedroom. The noise was unbearable before I installed Indow inserts on all the windows on that side of my house. After install, I can still hear a little bit of bass - but it's bearable and I can't hear any voices or other annoying late-night "bar noise". The install was fairly easy - measuring the windows took a lot of meticulous attention to detail, but the result was worth the effort. I highly recommend this product to anyone looking for more peace and quiet in their living space.