Disclaimer: I've not used this product, nor even seen it. The following has been relayed through second-hand information and the web.
A colleague of mine lives in a condo in the city, and as you might imagine, noise is a primary concern. While the new construction space was supposed to deliver some buffer from noisy neighbors, that hasn't been the case. Between one neighbor that's rather vocal during nighttime activities and another neighbor who invites friends over to play Gran Turismo from 2 to 5 every morning, he's had a few sleepless nights.