The first 10-14 hours (depending on what you do) are not the best (still good) but once you pass the first 'Chapter' (end of chapter bit is great) it gets really good. Some story aspects are lacking sure, but the gameplay, exploration and characters are all good. It's no Origins but it's really good.
Little advice, the fetch quests, the picking up the skull things and the Astroniums or whatever they are called don't do them, it's bad to say as they are part of the game but ignoring them, to me, made the game better. The rest of the game of exploring the landscape, finding new hidden things and cool goals like freeing a Fort, fighting dragons or The Fallow Mire (which is basically a linear path to a boss) are great things.
Sorry you didn't find it good though. If you went in expecting a Skyrim-esque world then yeah you would be disappointed, DA games are not like that. They are more like FF12.
I'm on my 4th playthrough.
Hmm, pie.