I recently moved into a home that has ceiling-mounted speakers throughout, with volume controls in the various rooms/zones. This was my first experience with a multiple-zone speaker system, and my receiver didn't have built-in multi-zone support, so I purchased this unit to control the five zones. I opted for the Niles SS-6 over some less expensive units primarily for aesthetic reasons, and this controller does look great. It also works perfectly in controlling the audio to the different zones, as you'd expect. My one complaint -- and I would have taken off just a half-star for this, if that were an option -- is that I found the speaker connections on the back of the unit to be extremely difficult to open and close. It always felt like I was going to force them to a breaking point, although none of them broke. By the time I was done making the 20 connections (10 speakers, right and left for each) my hands and fingers were pretty sore. I also tried using a screwdriver to flip up the connectors but even that seemed more difficult than it should have. Obviously once the speakers are connected you don't have to go through that again, so it's not a huge issue overall but something to be prepared for.
Pros: Easy operation, controls speakers, looks good, included zone-name stickers are helpful.
Cons: Stiff speaker connectors.