We love the product but after a few months, ours did stop working.  Due to the shipping issues for ALL companies, the replacement part took a long time to get to the company (the one required to prepare our replacement).  The company sent out the replacement crazy fast once they had the necessary component.  5 stars because it is a great machine and the company was very fast to make good on the warranty.  As far as retailers and their guarantees, that's a different story.  Make sure you register your product with the manufacturer.