I decided to upgrade from an 8000 BTU portable air conditioner that I’d ordered a couple years ago. 8000 should have been the right amount based on the size of my room but my room gets quite hot, so it ended up not being enough. This new AC works great and I love that I can control it with my phone over the WiFi. Just beware that the AC is quite large and heavy so it takes some effort to get it up the stairs if you don’t live on the first floor.