I live in Central California where it gets over 100 degrees many days each summer.  We put in a 10 x10 insulated sunroom on the west side of our house many years ago, but it gets too hot.  This particular model was the only one we could find that would fit the windows in the room.  We added this window AC this summer, and it makes a MAJOR difference!  It even gets TOO COLD sometimes and we need to change the temperature setting.   We paid an installer, which almost doubled the cost, but we are happy campers!