Recently bought a bluray player and also a seperate dvd surround sound unit, i ended up having 4 remotes lying around the living room! Was doing my head in so i took the plunge and im glad i did, this this is so easy and amazing! It took 5 mins to set up via my pc and away it went, it didnt quite have all the buttons already set for my surround sound but with the 'button learning' ability i just aimed the old remote to the harmony pressed which button i wanted it to learn and it did, its an amazing bit of kit really! If you have 4 devices or less you cant go wrong, i cant recommend this enough!!