If you like roleplaying this is the game for you!
It isn't free world in the way oblivion is, but it's far superior to it in voice acting and has a solid gameplay. The plot is very good and multiforked, and you can't help but to feel you're IN the game, instead of just watching it. It beats nwn 1 and 2 in simplicity and is great fun. It's M rated for a reason, but then if you're reading this, chances are you're grown up enough to handle it.
Great voice acting, great plot, great gameplay, easy modding installs(dazip), very good overall impression. Controls and menu system needs getting used to, but is still better than previous games from the vendor.