I live in an apartment next to a busy main street where cars and emergency vehicles would pass by all the time at night, making it difficult to sleep. However, ever since using the Indow inserts the noise levels have reduced significantly and I can barely hear the loud bearing sirens going by all the time. The ordering and measuring process was straight forward, convenient and easy. It arrived way earlier than expected and it was relatively easy to install even for a non-handy person. I would recommend it 10/10 for anyone that suffers from loud neighborhoods. The only criticism I have (and it may not be Indow's fault) is that the courier delivered the panels to the apartment building office and not outside my door. These panels are really heavy and I would not have been able to carry them up to my apartment had I lived alone.