I think he has 13 t3 (or earlier) answers to that kind of situation so the deck should be ok. It doesn't seem too greedy in that respect. I really like that it's 3 colours. I've had enormous success with Jolys superfriends and it's four colours, so this should be even better
Also he has five lifegain cards, that seems like enough, no? Maybe you guys are right about Blessed Alliance instead of Distentigration or something but it's hard to argue with the decks results
If this deck is on the draw against aggro I can see it folding. A lot. Super low on the instant speed interaction when it's in the colours tailor made for it. Push, Grasp, Alliance and Lightning are all conspicuous in their absence. Way to many sweepers and sorcery speed removal.
Well, if aggro is on the play and gets a good curve, it ought to be able to beat any deck. If it can't, who would play it? It's true that this deck folds hard against counterspell control, though.
I've played more games with this deck and it's strong. I like it. Some impressions though:
1) I think the Never // Return suggestion is a good one. It's not so much the ability to kill planeswalkers (it does come up however) as it is the Return half of the card. I played one grindy game against an opponent with two Never // Returns and his 2/2 zombies actually caused a lot of problems.
2) Liliana, Death's Majesty has not been performing well for me. Problem with the +1 mode is that it can mill you of important cards. Against aggro it's not a big deal but against other control decks, if you lose your planeswalkers you will have trouble. Plus you get closer to decking. Meanwhile the ultimate is irrelevant, too. At best it can use the minus to bring back a gearhulk - but there are only two of them.
3) Heart of Kiran is very clever, I would not have thought of it.
Next time I play the deck I would try something like -Liliana +Avacyn (or Kalitas). Gideon of the Trials might also be possible since you are running six sweepers after all. The -Thalia + Gisela suggestion is reasonable, too, if the mana can support it.