I received my Harmony 880 yesterday, and all I can say is WOW!! It took me about 15 minutes to set it up, and everything worked perfectly the very first time. This remote runs my Pioneer AV Receiver better than the orig. remote. I plugged it back inot my PC this morning to make a few minor tweeks, like changing the "Watch PVR" to "Watch TV". Very, very easy. I have checked, and re-checked all of the buttons for each of my components, and every one of them function perfectly. BUY THIS REMOTE, YOU WILL LOVE IT !!