About 1 years ago we purchased a named brand 15,000 BTU for use in our living room dining room, 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 easy to manage. Installation was very easy. It comes with it owns brackets to support the unit. If this continues, we will be a good customer for LG products in the future.