I love how these guys explain everything that is going on with your furnace, what needs work, what doesnt. Tony spent almost 2 hours here just for a tune up. He showed me proper maintenance and suggested repairs that would help, but they do so without making you feel like you HAVE to do these fixes. They're just what they are, sugestions. They aren't pushy salesmen. My furnace is really old and he took the time to clean and maintain it, when most wouldn't even look at it for being so old.