Google doesn't ever seem to learn from it's mistakes!
I don't get how such a huge company has so many many failures and poor products and here there are with a new one! really a tv box... again...
Google need to understand that the apple TV kinda works, i frees your iPad and iPhone videos to the TV and lets you build a collection of movies etc on your apple tv that you can watch again and again.
Voice control, apps and simple UI are all a bit pointless. people want to type on the thing they know (mobile phone touchscreen) not talk. Apps work best when the content isn't shared with everyone in the room and you need the best interaction and control over them to make em work (apple just don't do apps because of this on the apple tv).
UI should be so simple you don't even realise you are using a smart tv. no one has got that right yet, there is too much content and no way to cut through it all and avoid having to mine for the good stuff.
This will go the way of all other top boxes for now.
The only important thing for these products is can it play video off my device. does it have bbd iplayer (insert local tv catchup services), youtube, netflix. Turn on in an instant, have a shop to buy everything like movies etc. can it connect to my computer.
There is not much more to add right now until networks give up control, we are still going to be at a tipping point for these devices to really shine.
It should be sky or virgin media or who ever you get tv from has a panel on your device and you can stream tv to it instead of a schedule and it can time shift any content on the system providing ads based on what you've paid a month.
Oh well we can dream on.