Okay I am going to be very polite now.
First of all Larian should be applauded for what they have created after all. I told you I am polite.
But it is lacking in certain departments of the game. The combat mechanics is not providing enough for me. There is a scarcity of skills and combinations, although there are such to a certain extend, but at around level 14, or mid-game, the system exhausts itself and there is no profound skill progression further. As if the system collapses under its own weight and doesn't know what to offer anymore. Notable example, master level rogue skill - coup de grace. This is unacceptable to me; mid-game to achieve full class maturity, too early and disappointing.
DOS let me down very early in the game but its lack of epic feeling in the story. Instead bombarding the player with its excessive weird type of humor highly untypical for the dark world of rpg fantasy. Instead I feel inside a soap opera story. Anyway, I closed my eyes to this problem and focused on the combat mechanics the game has to offer. Unfortunate the mechanics let me down at mid game as I said my builds feel fully developed and I don't know where to assign points anymore.
So how is this related to DAO ? Very obviously - DAO did it right, from storytelling, emotional characters, to inventory management, shop system, build progression, combat depth. Things that DOS is lacking more or less.
