Had this Frigidaire Vertical Slider Air Conditioner for over 2 months now and can't do without! Summers are hot and humid in South West Louisiana and it does the job! Just set the temperature hit energy saver and bingo bango, you'll stay cool 24/7! Once you prepare the window, it's not hard to install, just need 2 people to put it in! Only problem was the instructions, had to improvise a lot! Bedroom and hallway stay cool!