Problems they had with Destiny 1 launch like loot problems, the awful campaign, bullet sponge bosses, and an unbalanced PVP (Yes it was.) were eventually fixed over the course of the game. O course I'm probably missing some. Or many. Considering their past knowledge, at least 2 of those problems won't be problems at launch. Campaign and bullet sponges. I have absolute faith that PVP will never be balanced, but they can try and I can still enjoy it. The game development didn't seem to have a complete and utter breakdown at the last minute which kinda screwed over Destiny 1. So that's also a plus. Hype. I think it will be better than D1.