Fantastic find as a recent "special buy", which influenced my choice of this particular unit. Setup was quick and easy, and this 10,000 BTU unit cools my 450 sf office quickly and well. I bought this during a 100°+ hot spell, and the AC was up to the job! Noise level is probably typical, and compares to a similar Sharp unit we bought a few years ago. Simple functions and a simple remote, which I like. You can also set the AC from the front panel in case you misplace the remote. It serves as a dehumidifier for those who need it (in California, I do not). If used as a dehumidifier, you apparently must occasionally drain the unit via a plug on the back. As with my other AC, since I only use the unit as an AC there is no need to drain anything. The air filter slides out easily for quick cleaning (in water, then dry it off). The air vents on top close down when you aren't using the AC or for storage.
The overall size seems slightly smaller than I expected, but I like that (it's a bit more compact that the Sharp 10,000 BTU one I have). The window attachment is easy to set up. It works for either a horizontal up-down type window or alternately with a side opening window. There is an additional window piece you can add on for wider or higher than usual windows. Everything is very nicely made, of good quality.
It's worth mentioning that Home Depot's online ordering and shipping is superb...the AC arrived only 2 days after ordering, and shipping was free! Very pleased.