We just got rid of our old ac we had for 15 years. It was sufficient in cooling our 1000sq ft house if we use a couple of fans to redirect the flow.  This new LG ac has the same btu rating as the old but is much quieter!  I love the new features like just setting the air temp by degree and having a dehumidifier option.  Used it for 2 months now and seems to work great!