I've been installing Goodman A/C and airhandlers. Knock on wood I haven't had a problem. I think it is a good system. But all the parts aren't the same. When I install a furnace I will use amana, who I am told makes goodman. It cost a little more. I had a problem twice installing cheaper funances. I won't do that again. What I want to know is does anyone have problems with the Goodman A/C equipment. I like it and I haven't had any problems with it.