I had a hard time installing it,due to the crank window frame being an issue, but with some thought and prep work, it fit great and I am happy. I used most of all the window kit that came with it and some of my own items. Installation calls for it to fit in a slide up and down window with a flat sill, which would have been a lot easier. It did not come with a protection screen for the back, to keep the grid fins from damage, but I found something that worked . It cools my whole house.