I think it says a lot that DS, who generally has been a bit meh about this series, exploded with something akin to rage that he was going to have to wait until November for the next episode 
Am sooo glad I was not the only one sobbing at the River scenes. The Doctor/River has got to be one of my favourite love stories of all time, bonkers as it is. And I loved the fact we have more questions in spite of much of it being resolved.
Am with those who think JH has got to be the version of the Doctor through the Time War. Yes he despised the darkness and duplicity of the Valeyard, but his attitude towards JH seems to be at another level.
And did anyone think that River opened the door because she needed Clara to be alive, more than anything else, because she knew what Clara was going to do? The old "Whatever your thinking of doing, don't" seemed to be more of an encouragement to Clara's type of character.
Also loved the admonition to the Doctor to think about why there was a link between River and Clara. If it wasn't for the snogging that had already taken place, you would assume she was saying that Clara is a distant relation (based upon what happened in Hide). Or maybe she is saying that an element of Clara entered not just the Doctor's timelines but also the being of some of the companions? Some of those outfits were very Sarah Jane, Ace etc.