Samsung good and its was international service brand and the service is fast and good.Fast Cooling Mode cools much faster by running the compressor at the maximum level with the fastest fan speed for 30 minutes.Keeps going in the most challenging environments with Triple Protector Plus technology. It prevents overloads, without a separate voltage stabiliser. Good Sleep mode creates the desirable climate for a good night’s sleep. With its temperature control, it keeps you comfortable. When the air conditioner is turned off the Auto Clean function automatically runs a fan to remove dust and moisture in the heat exchanger. So it stays clean and dry, which prevents the growth of bacteria and mildew.