I purchased this AC Window Unit for my 200sqft bedroom and it works like a charm! I leave my bedroom door open so the air can cool down my living room as well. I purchased this specific item to use the WiFi capable app on my phone to turn on/off when I am away from home.  The reason I am giving this review 4 out of 5 stars is the app seems to have an issue when trying to set a schedule for the AC to turn on or change temperatures at the selected time.  The issue is i cannot see the times listed on the app.  Other than that, this is a great AC Unit! I recommend!