I love the sonos connect so much that I got one at home, at work, for my brother, for my father and for my father in law. My only complaint is that my controller is locked to one system at a time. When I move between different houses I should be able to pair the controller on my phone with their systems and have it remember me when I come back - without resetting. I've seen the tip about bringing them all to one place and setting them up together. But that's not always possible or desirable. There is no real security concern because I still have to be allowed on their network and I'd still have to push the buttons on the device. Seems like a relatively simple software problem to allow me to pair with multiple systems and remember all the systems I've paired with.