Summary: If you use an iPod (any model), than this is a 'slip it into the cradle... and it plays where you left off' item. As with all of the Sonos items, it is a no-brainer to use or set up. Expensive, but as with Sonos.... it reflects the motto, 'you get what you pay for.
Summary: If your goal is to stream audio from an iPod using the old 30-pin dock connector to your Sonos speakers, this is the way to do it. I use it with a 6th-gen iPod Nano. It locks up every once in a while, but all you have to do to fix that is reset the iPod by holding down the sleep/wake button and the volume down button for a few seconds. Put it right by your front door and you'll be able to transition between headphones and Sonos almost seamlessly.
Summary: Sonos is pricey, but you can't beat it for a wireless sound system that just works. Easy to set up, easy to use. Had a problem connecting to my computer once, and their tech support took care of it. It's taken me a couple years, but I now have Sonos speakers all over my house and I love them.
Summary: Simple to set up with sonos 5 and and bridge. Installed software on my PC and downloaded controller app for my Galaxy S3. The whole took 30 minutes and I was playing the Ipod or Pandora wirelessly in my living room or the entire music collection on my PC.
Summary: Sonos has published that they will no longer make this device. However, support will be available for existing owners for the time being. The reason they provided is because the new iPhone 5 connector will not work on this device.