I had AHS a year after I got my house. They replaced a furnace that had crapped out. The replacement was adequate...nothing fancy but it works. The installers were actually great. They did excellent work adapting the old ductwork to the new sizing and cleaned up the electrical going to it as well. I've heard a lot of horror stories, but my experience with the installers was great (the warranty only covered the replacement PART, not the install labor which may have made a difference). Biggest pain in the was was waiting on hold for 6 hours to put my claim in. They don't make it easy, but we got our money's worth. That said, take the amount you would put into a warranty and stick it in a rainy day account.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth