We bought lg window ac of 1.5 ton in 2008, since than it has been working effectively till date .however it slowed down recently which was corrected after some servicing of it .it is one of the most longlasting products we have bought in our home , it cools effectively even in 45 of temperature but it was not any star rated which makes it to comsume more electricity than others in my home , but it is still chilling ?