Arrived quickly. It was easy to assemble for the most part; the only problem was that I had to purchase a hacksaw in order to make the window kit fit into my window, but I know other AC window kits have to be cut to fit so it's not unique to this model. Also, there's a small issue with the inside grate in that it makes a noise sometimes. Other than that, it does its job and I'm so grateful to have it during the night.