I just had this unit installed in my home a few months ago after having a Trane unit for 16 years. This is the same size unit I had previously, and it cools so much better. The outside unit is much larger than the old one, but that does not matter. There is such a big difference that we have noticed already. We can actually feel the air blowing in our home when the unit comes on. And living in Florida, this is a year round necessity. We are hoping to see a decrease in our utilities, but won't know until the heat of summer. Our home is much more comfortable since having this installed. When it turns on though, it is quite noticeable inside. You can hear a blowing sound, which we never had before. We are told that this is due to being a stronger unit than the last and also this was properly installed, when the last one wasn't. The temperature control is simple to use and we rarely adjust it. Those who complain that they can't cool their homes are expecting too much. If it is 100 degrees outside, you can not expect to lower the inside temperature by more than 20 degrees at the most. That is common knowledge with central air conditioning. But keeping our home at a comfy 76 degrees has been easier than before. This unit will turn on when your set temperature is reached and cool until it reaches two degrees lower than your set temp. Wish we had put this in years ago, we love this unit much more than the carrier we had previously. And it has a great manufacturers 10 year warranty on parts.