I've been a Friedrich consumer since the 1970s. Products have continually become worse. I tried, once again, and bought another Friedrich window AC unit. When attempting to apply for the $30 rebate online (only way to get it now), their site returned a false error message saying that the serial # did not match the model #. (The numbers matched when I registered the product online.) My invoice, the box, and the sticker on the side of the AC unit all confirm the numbers I input. No way to move forward except to call the 800 #. I waited more than 58 minutes on hold and was promptly disconnected a few seconds after someone picked up and laughed. Is this Friedrich's idea of customer service??? Time to find another brand. User's recommendation: Find another brand. Customer service is unbelievably poor.