It was a little difficult to install the window insert. You will need to get foam window sealer to stop the gaps and ensure the window insert stays put. You will also need a saw if you need to resize the insert. The insert itself is a heavy duty plastic, not flimsy at all. The unit came packaged in 3 boxes, no worries about shipping damage. It does blow out cool air, easy to use panel, don't think I will use the remote. It is a little noisy blowing out the cool air but I am willing to put up with it to make my living room cooler. The other thing I don't really care for is the bulkiness of the intake outake hoses. But again, I will deal with it.