One of the buttons on my H659 became delaminated (that is, the top, shiny surface came loose from the rubberized button). Harmony's tech support (this was before Logitech acquired Harmony) determined that my registered remote was still under warranty and cross-shipped a new remote to me. (That is, they charged my credit card for a new one, then refunded my payment when they received my old one.) My only cost was return shipping, as I recall. Back then, by the way, the warranty was only applicable to remotes purchased from certified Harmony retailers. I had purchased mine online, but they honored the warranty anyway.