I live In a condo in San Jose, CA where a significant amount of development is underway. Specifically there is a 4 story, 150,000 sf hospital being build next door. There is a continuous stream of sounds ranging from deep growing heavy machinery, grinding, hammering, backup alarms etc. A few weeks ago my Indow Windows arrived and completely changed the situation for the better. It did not make the project go away but the constant sounds were muted. For example the window inserts are able to decrease the hammers and backup alarms. They are still present but arena the background instead of a continuous alarm clock type feeling. The inserts all fit very well and came packaged very well. My entire experience with Indow has been positive. I never felt pressured but listened to while they made product suggestions. The measuring was detailed and the ordering process was a breeze.