I bought an LP air conditioner model LT1216CER for my family room to replace an old a/c unit that no longer worked.  The room is 15' by 20' and the LG unit cools it down quite well and it does not make much noise, unlike my last unit.   I bought an LG air conditioner because  a few years ago I bought an LG gas dryer and I am very happy with how it works. It is a quiet work horse.  I expect the same from my LG air conditioner..