I purchased this unit just a few days ago to replace a very old unit ( 28yrs old). It's working great! VERY quite for this type of appliance. Cools the room VERY quickly and the cooling process cycles on and off extremely quite. The remote feature is very convenient as well the different options of operating are very easy to follow on the LED screen. Well done LG! 
I'll be getting another one for a different room.
RD Las Vegas