Ok truth being said here, its great! We live in 3 story log home and the progression of rising heat is terrible with the southern humidity .....well needless to say if it didnt work and work well I, I would not have it. We empty it about every 12 hours, there is a noticable difference in the temperature upstairs for sure no doubt at all ! I definitely recommend this unit, since the purchase upstairs has been more pleasant and livable, sleepable all around. It is very quiet and is not even noticed at the foot of the bed, sleep just fine ! Hope you do too !