Well, I just retired my 3RD GEN Apple TV and hooked up the new 4TH GEN version. It's absolutely wonderful. I really like the Bluetooth remote. It beats having to stand in front of my Apple TV with the remote, and point the thing in what you hope is the right direction, only to find out that you're clicking into the wind.
A couple of things I would like to see: On this site, I'd like to see a special place where APPS made for the Apple TV are highlighted. I know there probably aren't a lot out there yet which are accessible, but as time goes by, more should show up, and it should be easy to spot them.
I would also like to see Apple attach sounds to all those cool screen savers, so that, for instance, while my wife is admiring the nature scenes, I get to hear the birds singing and the water running down the waterfalls.
Just a couple of ideas, but I would like to hear your thoughts.