I was really excited to get this for an add-on room that has no central air ducts running to it. This a/c quickly cooled the hot room from 85 to 70. I love that I can control it from my phone. The app works well, no complaints here. Alexa, turn off my a/c is my new favorite thing! It was very very easy to install. It fit perfectly in my double hung window. It is lightweight and lives up to the GE standard. I love it. Being eco is just icing on the cake!