Dragon Age is a lot of fun, one of my favourite games these days. I'm a veteran of Morrowind and Oblivion, but those games take a considerable investment in time; they're endless, really. As mentioned above, they are also pretty much free-wheeling in terms of where you go and what you do, limited only by the level of the enemies in a given area, and that only for a while.
Dragon Age has almost no exploring; the map areas are small (some of them tiny) and there aren't that many of them. The game focuses much more on story and party member interactions, like the old Baldur's Gate games. Much of the game is about your party members, in fact, and how you relate to them. You aren't playing the game to gawk at the scenery, in other words. You're playing to resolve quests, meet new party members, rake in some cool loot, have a romance or two, and save the world (of course).
After playing both Dragon Age games, I'm concluding that Dragon Age Origins (with its expansions)is the superior game with a greater replay value. It has a much stronger story line and the game areas are far less physically restricted. But that's only my opinion, and both are great fun.