Its huge, like really big. Crazy detail. I have this and the do1 adventure and theres a lot thats duplicated if you have that other stuff. But the npcs have pix now, and its all in the outside of the city which is even bigger and more buildings than inside.
Crazy good addition to the adventure if you have it already. If i didn't have the DO adventure i'd still mine BB for ideas and characters; really neat on its own too I'd gues.