Our window is broken, it does not have any lock, and we are girls, we are not really sleeping well. For me, I am basically sleeping in fear someone might open the window and come inside. At the end of the day, I cannot sleep. They just tell us to wait for the technician to come and don't do anything much about the problem. I might say, this is the last time I ever trust the rating, such a down experience for me. And btw I cannot do the refund😭😭😭