I have purchased 5 star 1.5 ton samsung AC three year back in 2014 . every year it was maintained in standard Samsung rep only. maintenace cost of AC is high . power consumption is also not as per 5 star rating . it is only 5 star rating but as level it consume 1200 to 1300 watt/hr power . after 3 year it coil is leaked. now samsung is asking 9000 rs for repair that is al;so not gauranteed. so I think after investing 45 000 rs just in three year it start leaking . it is not a quality product