I bought this window air conditioner with capacity of 1.5 ton by samsung. In the starting I felt the room that I am in the northen pols that is so obious because it was first air conditioner in our house and that was my first experience of sleeping in air conditioning room. But after that I felt that my air conditioner is consuming too much electricity that gave me a shock of extra bill.
Also with this the Air conditioner was not properly working and not cooling my room. Then I was forced to shift it to another room and buy a new air conditioner and this time I bought a split air conditioner and its so cool now.