I know there are certain issues with the game that can never be fixed, like the disappointing story and the lack of that 'horror' feeling. But the game play seems to be headed in the right direction.
I love the ubers - makes playing with others fun. I hope to see more of this
I love the monster power system
I love the addition of ilvl 63 crafting
I love the paragon levels
I love the increased drop rate in legendary, set and plans
I'm sure there are other things I've left off that I'm glad they implemented.
The point is that seeing that they are continuing to support the game gives me hope that it will just keep on getting better.
I hope they continue to work on is PvP , gear itemization, b.net 2.0 and a way to expand on customizing the looks of our characters. Also, make a better loot management system as well as make the AH less clunky. If they can make b.net 2.0 into something like steam, where it promotes a strong gaming community, I think that would be awesome.
I got a lot of playing time out of D3 and I really enjoy the improvements that have come along with each patch. Sorry to see so many folks who feel differently.
The game has been made and released, nothing you can do about that but support the team working behind it and be optimistic that they'll keep working to improve it.