[Sever]

Get it for Watcher's Keep. Personally, i found WK to be the best put together set of 'dungeons' in all of BG2. (Dungeons is a bad word to describe WK) Bioware clearly spent a lot of time and effort in creating this and i had a lot of fun beating it.

The plot of ToB is more 'compact' than it perhaps should have been. IMO there's more than enough potential in the story for it to be a stand alone game to provide the epic final chapters to a BG trilogy. Instead, it's an expansion and you feel as though you're being rushed through without the option of taking your time and setting your own pace. In short, the story is so much more grandeur than SoA, and the time frame is so much shorter.