The advantage of purchasing from Hammacher is that they offer an Unconditional Lifetime Guarantee on everything that they sell. The Scooba normally comes with a 1 year standard warranty, but if you purchase it from Hammacher Schlemmer and you ever become dissatisfied with the Scooba for any reason, they will replace it or refund the entire purchase price, whichever you prefer, and standard shipping on the Scooba is FREE for a limited time if you enter the code ROOMBARV in the box marked "Shopping from our catalog?" at checkout.