I love the fitment of this AC in the window. Installation was simple. I needed ro extend unit all the way to fit window opening, but it fit fine. At first it was pretty quiet and I was impressed. After a few weeks it started getting louder. Now, after 2 months, it is annoyingly loud. Ans since it was described as quiet, it really annoys me. Some days I want to toss it out the window! Overall, it is a great concept for an AC, but it seems like poor quality in the long run. The fan makes more noise than other ACs I have had. It doesnt do this all the time, but often enough that I could not recommend this as a "quiet" AC. I keep trying to tweak position of unit to get it to settle down, but to no avail.