I have just one point I'd like to have addressed by Riot.
Often, I decide to spectate a buddy's game just because I'm waiting for that game to finish so I can join them next game.
The problem here is that when the game ends, I don't know for another 3 minutes, unless they message me while I'm spectating.
Make a popup that says the game has ended, with the option to quit early, instead of waiting for the end of the stream.
Another thing, can we have post-game stats? I don't even know if they show up for spectators, but that would be cool to see at the end of the game, just like regular players get.
Thanks for a great product! Really excited for Proving Grounds on the NA server!!!