Works Well Works well. Turns the volume down on outside noises (except low frequencies). Loud sounds become moderate. Moderate sounds become barely-audible. Quiet sounds become inaudible. My only complaint is the instructions it came with were misleading on how to connect the brackets to the bar. Maybe I got outdated instructions. I suggest that the company advertise more clearly the fact that it's made of EPA rather than PVC MLV. Standard MLV is made of PVC, which offgasses toxic fumes indefinitely. EVA does not. This product has a smell for a couple weeks - but at least it's a harmless smell.

Does nothing vs train horns Purchased after reading a review on their website saying it was effective vs train noise. There is a train track a half mile away that hoots in the middle of the night. The curtains do not dampen that noise at all. They mildly dampen other noises, but do not do anything towards the reason I purchased them. I should have done more research on reviews before committing $700. Frankly, I feel like I've been scammed.

The curtain is not effective The curtain does not performed as advertised. The noise reduction effect is minimum. Customer service did not follow up my questions until I emailed them the second time. Even then not all my concerns were addressed. The curtain can be functional as a blackout or thermal curtain, but not so much as an acoustic curtain.

Okay While they do dampen some noise, they're not effective at blocking out low frequency noises. The website notes that this, but I thought I'd give it a try. Blue color is attractive and they look good. Installation a bit confusing because the velcro is inset from the edges. Took longer than expected to receive the blinds. Overall, they're okay, just not very effective at fixing my particular issue.

Poor Customer Service Do not buy this product. After following the measuring guide as well as contacting the company before purchasing, the product I received did not fit our windows. The perimeter seal is attached very sloppily and is not square on the curtain so it does not line up with our window sill. After talking with customer service, the only option available to me was to pay $150 to have them redo it. That being said, I also think the product looks worse than it does in the photos on their website. Avoid this overpriced poor product.