Purchased 1 Split AC and 2 window AC of Hitachi thinking that it should be a quality product. To my shocking, gas leaks in all 3 ACs every year. After 3 years with 2 gas refill, technicians told me that cooling coils needs replacement which infact very costly. The company does not cover coils under AMC. The company provides paper thin(very low thickness) coil which does not last more than a year, I am writing about my experience just to caution other about the product.