1: Lack of progress visuals. If incorporated would make things much easier to determine which series you are caught up on with the recent episode. Very helpful if you have multiple shows in queue. This is a feature on the site. Yes, the History is there. But it only goes back so far. So for someone who just binged 57 episodes of Fairy Tail or something, it is still very possible to get lost.
2: It would be great to see along with the "Coming Soon" an estimate of time until next episode. Again, this is a feature on the site.
3: Organization of Queue. Just something nice to have. I haven't seen if the site has this feature yet.
The following are related to the Chromecast interaction with the Android app.
Queue does not update like in regular watching circumstances unless opening other apps to force a refresh on the Queue. An update function would even solve this. Otherwise, you need to tap-hold and select Videos and then keep track of which ones you watched.
Navigation through an episode is complete guesswork for those who don't feel like watching the Opening Credits sequence every time, or want to go back to a scene, etc.
Play/Pause can become unresponsive until a manual disconnect/reconnect after a few episodes.
Navigation through an episode can become unresponsive until a manual disconnect/reconnect after a few episodes. This usually happens the episode before the Play/Pause issue.
I think that is it.
2012 Nexus 7 WiFi only tablet running Android 4.4.4