About 2 years ago we purchased a named brand 15,000 BTU for use in our bed room,  We enjoyed this for awhile, but it was quite noisy and it just didn't satisfy. So we opted to purchase the 12,000 BTU  LG unit.  The new unit is extremely quite. and a much smoother operating machine.  If this continues,  we will be a good customer for LG products in the future.