It is quiet it is very fast in cooling power consumption is good and looks beautiful from front panel I stated using hitachi logic cool from 4years no problems I keep buying them since now we have 3 of logic cool and 3 quadricool im impressed with reliability and product quality u should check the piece before instalation for damage during transportation it is real nightmare for one piece I need to change 4 pieces becauce of damaged pieces in average day it is consuming 3 to 4 untis power for 7 hours it goes to 5 units also but it is consuming 6-7 units during very hot day (my room don have any ceiling or insulation it still got a ventilator opened but meshed and 4 people in it) so its economy is impresive its kaimin feature is real beauty(raising temperature 1 deg every hour upto 4 deg ) makes u sleep with out blanket what I don like is its lenght at the back u can not avoid it because of its fan design its theif preventing loking system is really good and im waiting for such thing from long time. 2010 I am back to this review afer long time. its been 5th year still running good.So my oldest one is 9 years no trouble. and youngest(split ac) is 4 years. out of all only one gave trouble.