I had a O General air conditioner which was 10 year old and it malfunctioned and I sold it and bought a new O General window air conditioner.
The flow and speed of air is very fast and cool. It also consumes very less energy and the bill is also less. It also creates very less sound when used.
Though the swing could be sideways but not upwards and downwards by remote control only manually. This is the only drawback I feel in it.
Also it trips after every 2 minutes thus it have to be kept at a temperature lower than 20 degree celcius.