We got this for an extra room upstairs in our house where our son decided that he wanted his room. This unit was very easy to install in the window as you just secure it to the window with some screws. It fits perfectly and is sturdy in the window. The noise level of this unit is great. I remember having window units before that were so loud it was hard to hear the TV...this one is not totally quiet but even on the highest setting it is easy to hear the TV or talk to others in the room. We like the fact that you can use the app to control it with out having to run all the way up the steps in case you forget to turn it off or even when our son is on the way home he can turn it on to cool the room down. This unit cools a room down quickly and keeps the room comfortable.