Bests & Worsts Reviews from Amazon

Subscribing to security product and services requires 100% trust of the provider/manufacturer that their product works as described. This product is only to serve 1 purpose: to block signals. I am a first time user purchaser of products of this nature. Over a 3 month period learned by experience that when I inadvertently left my cell phone (airplane mode connected to wifi) in the sealed Mission Darkness bag (as instructed) that my carrier signal delivered a text message (via wifi) to the cell inside the bag at close range to wifi router . This would happen within 15 ft of the wifi signal and when I ran the test could feel/hear my phone vibrate with each test SMS receive. I tested with a second unused bag which blocked the signals successful. The merchant was very helpful and processed my refunds and indicated that this product is know to have leaks after normal to heavy usage. The manufacturer hasn't replied to my inquires. I believe a workaround could be to purchase 2 bags and put one inside each other which may block signals as described. While there might be a way to mitigate this defect, I'm giving 2 stars because the hidden defect is not disclosed and customers may be using a product with a false sense of security. Not sure how this defect could exist within a military or police compliance or how the defect bypassed other reviews. Portability: design could be improved by offering loops or straps to help secure during transport.