I know there will be a flood of comments disagreeing with me, but I feel the ATV4 and tvOS has been a disappointment so far.
I had high hopes for it, only to be let down.
I just bought my ATV this past weekend and I'm fairly happy with it. It's very comparable in feature-set to the Rokus we've been using except the ATV is much responsive and loads things much faster. I like the UI, though I think it could be improved.
I was happy that a few of my games had been modified to support the ATV4, so I already had content to play. Of course I tried some of the free games on offer too.
My biggest gripe right now is less with Apple and the ATV and more with the content providers and app developers.
A few of the standard channels have apps on the app store for ATV, but then Comcast Xfinity is not an option for activating Live TV and unlocking Show Episodes. But the apps work pretty flawlessly.
Developers haven't really enabled many apps to work with ATV4. If more developers can add support, I can see a "bright" future ahead for it. Add in some original content and that makes it an even better pick.
I'm curious about how Developers are doing with adding ATV support. Are they even considering adding it? Are they creating new entertainment for the device? What is the overall interest in the development community with expanding the devices usage? Are they concerned that the ROI would not be enough since previously purchased universal apps would automatically transfer and be downloadable on ATV?
The Siri search doesn't appear to help much in most cases. If you use iTunes exclusively it works great, but once you start trying to search 3rd party apps it's hit or miss on whether anything will even happen. The great thing is it appears to understand the commands 99.9% of the time for me - it just doesn't have much in the way of results or options after the search is performed.
As a micro-games console, the ATV 4 is pretty sweet. If Apple could get some of the most popular console ports onto ATV, they'd have a competitive micro console that has a much higher potential of being successful than Ouya and the like. Amazon has tried this with Fire TV, but they are failing to produce much excitement. Apple already has lots of content that would be great for ATV, but they need to convince developers it's worth it.
For gaming, the remote is OK, but very limited. Disney Infinity 3.0 is a neat experiment on how it might work with a console-class game. I like that apps show whether or not a MFi controller is compatible with it. The remote can become uncomfortable to hold after a while playing games like Disney Infinity 3.0. The remote works great for games like Crossy Road, but that game seems unfit for the TV because it's meant to be enjoyed in extremely short bursts... unless you enjoy endless repetitiveness and getting that next high score. Racing in Asphalt 8: Airborne was fairly smooth with the tilt controls, however the framerate skipped around a bit in that game once you get racing. Riptide GP2 had a better framerate, but has kinda sloppy controls. Both racing games could probably be updated to make each better.
The remote is pretty great for navigating the UI. Typing is mostly better than typical smart TV remotes, but you may have to adjust the touch sensitivity. Using a phone helps relieve this issue, but is inconvenient. Not sure this is something Apple can really "fix."