Hello friends I’ve been using Hair HSU air conditioner for the past two years. This is a very great air conditioner. All heat is removed in a few moments only after running it.It is not known that summer is the season. It completely cools my room. I do not have to worry about this again and again.So far, I have just got to repair it once. That too soon got cured. It has been running very well for 2 years.I have not had any problem with this till now. Friends, this is a tremendous AC.I like this very much. Thanks guys, hope you like the review.