I played the game a lot since i got it yesterday and i don't see how its dumbed down. At least now you actually have to play well in order to beat some encounters, not like in DA1 where i didn't have to use a single potion my first time through and i switched to nightmare when i got Morrigan (probably the easiest RPG i ever played).
This game has more difficult combat and i didn't like the old inventory and craft systems, both are better now. Only thing "dumbed" down is that you cannot equip your squad with armor, but maybe thats not such a bad thing. In DA1 you usually stuck with the same squad members for the game more or less, i found my self switching around more now.
All of this comes from a very seasoned DA player who has completed the first game for PC 8 times.
Everybody who says this game sucks i dare you to go back and play DA1 now and you will see its pretty much the same game, just in a more stylish package with smoother combat (biggest bottleneck of the first since it was both clumsy and too easy).
That said, i don't know what the hell happened to the graphics, i play on directx 11 setting with very high on everything and i found the game to look worse than pretty much every other game i played on PC this past year except for Fallout New Vegas. Its also plagued with bugs but so was the first.