I am using carrier air conditioner since 3 yrs. I didn't it very effective according to the cost of the air conditioner . In looks also its not very attractive , in this price all other companies provide so many smart features like smart automatic climate control and the biggest disadvantage is that its consumes very high electricity.
As compared to other companies its not a good air conditioner because of the above reasons . I reccomend you not to use carrier air conditioner.