Blue star split ac is very good I am purchase this ac in 2012 and set in my room my room size is 12×13 I am start this ac in my room its cooling is very good and its electricity efficient ac my ac is completed 4 years till day but this ac have no problem in these 4 years and I am not spent any extra money on it this is very good and price of this product is very affordable I am really like this ac and all product of blue star everyone go with blue star products and enjoy its products