Haven't had any issues with the unit, but still in first year of using it. Have an old house with skinny windows so the 5000 btu is a bit small for room size and it barely fits in window. For this reason it runs alot. I don't think it's too loud. It's a very basic unit but I wish they used words to tell u what the controls are. The 2 snowflakes r cooling, think one is just fan and not sure what other one is. Lost manual already so I'm stuck on website looking for info lol