Apple TV came in at about 6 pm yesterday. Just set it up, here are my first impressions (and it's not a very good first impression).
1) Setup wasn't as smooth as my ATV 3. Logging in to my Wifi network via my phone took a few tries (the first couple of times just kinda froze there with no result).
2) Couldn't get any of my bluetooth peripherals to pair. My MAD C.T.R.L controller couldn't connect, and my K480 bluetooth keyboard could not be detected. Don't know what the problem is.
Surprised by the number of people still surprised that Siri doesn't search local libraries, given that it has been extensively discussed since before the release. A few people pointed out that it is not technically simple as the search is done in the cloud. But I think the reality is local libraries are much more of a niche audience and we all know that Apple doesn't focus on niche audiences. Lots of people on this forum talk about local libraries all day (and I have one too), but I don't know a single person that keeps a local library outside of these forums. The average person doesn't do it and it is not going to be a focus of Apples, and that shouldn't be too surprising.
I find the universal search to work quite well, it searches multiple services as advertised and it does prioritize free options over iTunes. The one thing I'm suspicious of is when doing a general search (e.g. a genre) I don't see many results for things that are not on iTunes, may be the search is driven from iTunes.
I do hope they update the interface for local libraries as that can't take much effort, but given Plex and other options are now available I'm not sure how critical that is.
To piggyback on this because i agree with all of it, I also believe the reason SIRI cannot search your local music or home movie/video library is due to privacy issues. I read somewhere yesterday that since siri works with apples servers, searching your local server would be a privacy violation. makes sense as Siri seems to work with everything else just fine.. and quickly.
I read that Siri music search may follow in the coming months. It was a quick read yesterday and i do not remember the source.
I also find the new keyboard much quicker while using swipe. why need to navigate up and down as well as left and right, when you can stick to only left and right? swipe gestures makes it super fast to select any letter.