I have had this 18000BTU AC for 9 days. It cools as good as my last LG 18000 AC, which is great. The only complaint I have is, the compressor on the new one is very loud, it interferes with the TV and conversations. The old one, you could barely hear the compressor running. The old LG 18000 BTU AC lasted 4 yrs. till the compressor quit cycling and stayed on continuely. You had to unplug the AC to cut the compressor off. Plug it back in, the compressor would come back on. It still through snow balls at you. I have had many different brand AC's over the past 40 yrs., LG has the highest air flow and gets colder than all I have owned. Also, the old one used the least amount of electricity of them all. Hopefully the new one will be the same.